dcrat | 6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fd

General

Target

6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Size

784KB
MD5

de823afda19d28d9868a69153f623070
SHA1

9dc57b5bfd50f833432646b5a482e31801297b44
SHA256

6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fd
SHA512

10b5ced20ffb9082e211245eaf4a002dfab0faf5106f449719529f345be1f2b25a538cd61636d09d6b6326be575cc45c78a8a7c33a3c864f2c376e0996cf71c4
SSDEEP

12288:eqnO8YpD1oOJp+Ce1PSiG2jfIBoI5DyDwYMDxFesH0ioBw7oKk2:e+ORToOWSi5gBoS4wYUJ0eo2

Score

10^/10

dcrat evasion infostealer persistence rat trojan

Malware Config

Signatures

DcRat 15 IoCs

DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

rat infostealer dcrat

description	ioc	pid	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dwm = "\"C:\\Windows\\System32\\wlaninst\\dwm.exe\""		6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\explorer = "\"C:\\Windows\\setupact\\explorer.exe\""		6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
		544	schtasks.exe
		2556	schtasks.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA		6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
		2768	schtasks.exe
		580	schtasks.exe
		1160	schtasks.exe
		2856	schtasks.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\spoolsv = "\"C:\\Documents and Settings\\spoolsv.exe\""		6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
		2656	schtasks.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsm = "\"C:\\Windows\\System32\\nltest\\lsm.exe\""		6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
		2608	schtasks.exe
		344	schtasks.exe
		2296	schtasks.exe

Dcrat family
dcrat

Process spawned unexpected child process 10 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2856	2800	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2608	2800	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2768	2800	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2656	2800	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	580	2800	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1160	2800	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	544	2800	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2556	2800	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	344	2800	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2296	2800	schtasks.exe	29

UAC bypass 3 TTPs 6 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe

DCRat payload 4 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral1/memory/2548-1-0x0000000000CD0000-0x0000000000D9A000-memory.dmp	dcrat
behavioral1/files/0x003200000001930d-35.dat	dcrat
behavioral1/memory/2644-72-0x0000000000E00000-0x0000000000ECA000-memory.dmp	dcrat
behavioral1/memory/1672-103-0x00000000012E0000-0x00000000013AA000-memory.dmp	dcrat

Executes dropped EXE 2 IoCs

pid	Process
2644	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
1672	taskhost.exe

Adds Run key to start application 2 TTPs 10 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\explorer = "\"C:\\Windows\\setupact\\explorer.exe\""	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\MSOCache\\All Users\\{90140000-0018-0409-0000-0000000FF1CE}-C\\dllhost.exe\""	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taskhost = "\"C:\\Windows\\System32\\profprov\\taskhost.exe\""	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\services = "\"C:\\Windows\\System32\\RegisterIEPKEYs\\services.exe\""	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taskhost = "\"C:\\Windows\\System32\\KBDMON\\taskhost.exe\""	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsm = "\"C:\\Windows\\System32\\nltest\\lsm.exe\""	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\spoolsv = "\"C:\\Documents and Settings\\spoolsv.exe\""	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dwm = "\"C:\\Windows\\System32\\wlaninst\\dwm.exe\""	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taskhost = "\"C:\\Program Files\\Windows Defender\\ja-JP\\taskhost.exe\""	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Windows\\TAPI\\dllhost.exe\""	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe

Drops file in System32 directory 17 IoCs

description	ioc	Process
File created	C:\Windows\System32\nltest\lsm.exe	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File opened for modification	C:\Windows\System32\nltest\lsm.exe	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File opened for modification	C:\Windows\System32\wlaninst\RCXEF13.tmp	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File created	C:\Windows\System32\profprov\taskhost.exe	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File created	C:\Windows\System32\profprov\b75386f1303e64d8139363b71e44ac16341adf4e	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File created	C:\Windows\System32\RegisterIEPKEYs\services.exe	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File opened for modification	C:\Windows\System32\profprov\taskhost.exe	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File created	C:\Windows\System32\wlaninst\dwm.exe	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File opened for modification	C:\Windows\System32\wlaninst\dwm.exe	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File opened for modification	C:\Windows\System32\RegisterIEPKEYs\services.exe	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File created	C:\Windows\System32\wlaninst\6cb0b6c459d5d3455a3da700e713f2e2529862ff	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File opened for modification	C:\Windows\System32\nltest\RCXEA7F.tmp	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File created	C:\Windows\System32\RegisterIEPKEYs\c5b4cb5e9653cce737f29f72ba880dd4c4bab27d	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File created	C:\Windows\System32\KBDMON\b75386f1303e64d8139363b71e44ac16341adf4e	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File opened for modification	C:\Windows\System32\KBDMON\taskhost.exe	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File created	C:\Windows\System32\nltest\101b941d020240259ca4912829b53995ad543df6	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File created	C:\Windows\System32\KBDMON\taskhost.exe	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files\Windows Defender\ja-JP\taskhost.exe	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File created	C:\Program Files\Windows Defender\ja-JP\b75386f1303e64d8139363b71e44ac16341adf4e	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File opened for modification	C:\Program Files\Windows Defender\ja-JP\taskhost.exe	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe

Drops file in Windows directory 7 IoCs

description	ioc	Process
File opened for modification	C:\Windows\setupact\RCXF117.tmp	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File opened for modification	C:\Windows\setupact\explorer.exe	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File created	C:\Windows\TAPI\dllhost.exe	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File created	C:\Windows\TAPI\5940a34987c99120d96dace90a3f93f329dcad63	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File opened for modification	C:\Windows\TAPI\dllhost.exe	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File created	C:\Windows\setupact\explorer.exe	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
File created	C:\Windows\setupact\7a0fd90576e08807bde2cc57bcf9854bbce05fe3	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 10 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2656	schtasks.exe
580	schtasks.exe
544	schtasks.exe
344	schtasks.exe
2296	schtasks.exe
2856	schtasks.exe
2608	schtasks.exe
2768	schtasks.exe
1160	schtasks.exe
2556	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
2548	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
2548	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
2548	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
2548	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
2548	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
2548	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
2548	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
2548	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
2548	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
2548	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
2548	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
2548	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
2644	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
2644	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
2644	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
2644	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
2644	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
2644	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
2644	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
2644	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
2644	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
2644	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
2644	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2548	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Token: SeDebugPrivilege	2644	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Token: SeDebugPrivilege	1672	taskhost.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2548 wrote to memory of 1820	2548	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe	34
PID 2548 wrote to memory of 1820	2548	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe	34
PID 2548 wrote to memory of 1820	2548	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe	34
PID 1820 wrote to memory of 1556	1820	cmd.exe	36
PID 1820 wrote to memory of 1556	1820	cmd.exe	36
PID 1820 wrote to memory of 1556	1820	cmd.exe	36
PID 1820 wrote to memory of 2644	1820	cmd.exe	37
PID 1820 wrote to memory of 2644	1820	cmd.exe	37
PID 1820 wrote to memory of 2644	1820	cmd.exe	37
PID 2644 wrote to memory of 1672	2644	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe	44
PID 2644 wrote to memory of 1672	2644	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe	44
PID 2644 wrote to memory of 1672	2644	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe	44

System policy modification 1 TTPs 6 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
"C:\Users\Admin\AppData\Local\Temp\6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe"
1⤵
- DcRat
- UAC bypass
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2548
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\VszE6iO6j6.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1820
- - C:\Windows\system32\w32tm.exe
    w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
    3⤵
    PID:1556
- - C:\Users\Admin\AppData\Local\Temp\6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe
    "C:\Users\Admin\AppData\Local\Temp\6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fdN.exe"
    3⤵
    - UAC bypass
    - Executes dropped EXE
    - Adds Run key to start application
    - Checks whether UAC is enabled
    - Drops file in System32 directory
    - Drops file in Program Files directory
    - Drops file in Windows directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    - System policy modification
    PID:2644
  - - C:\Windows\System32\profprov\taskhost.exe
      "C:\Windows\System32\profprov\taskhost.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      PID:1672

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Windows\System32\nltest\lsm.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2856

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Documents and Settings\spoolsv.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2608

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Windows\System32\wlaninst\dwm.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2768

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Windows\setupact\explorer.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2656

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\dllhost.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:580

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhost" /sc ONLOGON /tr "'C:\Program Files\Windows Defender\ja-JP\taskhost.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1160

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhost" /sc ONLOGON /tr "'C:\Windows\System32\profprov\taskhost.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:544

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Windows\TAPI\dllhost.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2556

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Windows\System32\RegisterIEPKEYs\services.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:344

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhost" /sc ONLOGON /tr "'C:\Windows\System32\KBDMON\taskhost.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2296

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

1

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\VszE6iO6j6.bat

Filesize
267B

MD5
26a5d99f1fff82e1e24a1ce0a4998b75

SHA1
f36795fa533d92b5d240319a34fc7cb4272735c1

SHA256
e223b7ed325e30b959e35070bd50336ca05c338f89fa93852aba9bdf46b62b4a

SHA512
139e68dea9a45ee57150f3aa3cb503265041d36cad11edc55c02d57cba9f43ef41a9b1dd01b174ff3adb6a8fffbf478d148a023bafe333238050de230715ed0d

Download Submit
C:\Windows\System32\nltest\lsm.exe

Filesize
784KB

MD5
de823afda19d28d9868a69153f623070

SHA1
9dc57b5bfd50f833432646b5a482e31801297b44

SHA256
6932a63853e3107a6fc6aba076776ff370d6d79dc076e457eafcc5c6a2b2d9fd

SHA512
10b5ced20ffb9082e211245eaf4a002dfab0faf5106f449719529f345be1f2b25a538cd61636d09d6b6326be575cc45c78a8a7c33a3c864f2c376e0996cf71c4

Download Submit
memory/1672-103-0x00000000012E0000-0x00000000013AA000-memory.dmp

Filesize
808KB

Download
memory/2548-8-0x00000000004C0000-0x00000000004CA000-memory.dmp

Filesize
40KB

Download
memory/2548-7-0x00000000004A0000-0x00000000004AC000-memory.dmp

Filesize
48KB

Download
memory/2548-17-0x0000000000B60000-0x0000000000B68000-memory.dmp

Filesize
32KB

Download
memory/2548-6-0x00000000003F0000-0x00000000003F8000-memory.dmp

Filesize
32KB

Download
memory/2548-18-0x00000000004D0000-0x00000000004D8000-memory.dmp

Filesize
32KB

Download
memory/2548-0-0x000007FEF5643000-0x000007FEF5644000-memory.dmp

Filesize
4KB

Download
memory/2548-9-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2548-10-0x0000000000B10000-0x0000000000B18000-memory.dmp

Filesize
32KB

Download
memory/2548-11-0x0000000000B20000-0x0000000000B28000-memory.dmp

Filesize
32KB

Download
memory/2548-12-0x0000000000410000-0x0000000000418000-memory.dmp

Filesize
32KB

Download
memory/2548-13-0x00000000004B0000-0x00000000004B8000-memory.dmp

Filesize
32KB

Download
memory/2548-19-0x0000000000BA0000-0x0000000000BA8000-memory.dmp

Filesize
32KB

Download
memory/2548-15-0x0000000000B90000-0x0000000000B98000-memory.dmp

Filesize
32KB

Download
memory/2548-16-0x0000000000B40000-0x0000000000B48000-memory.dmp

Filesize
32KB

Download
memory/2548-5-0x00000000003E0000-0x00000000003F0000-memory.dmp

Filesize
64KB

Download
memory/2548-4-0x00000000003D0000-0x00000000003D8000-memory.dmp

Filesize
32KB

Download
memory/2548-14-0x0000000000B50000-0x0000000000B58000-memory.dmp

Filesize
32KB

Download
memory/2548-20-0x0000000000BC0000-0x0000000000BC8000-memory.dmp

Filesize
32KB

Download
memory/2548-21-0x0000000000B00000-0x0000000000B0C000-memory.dmp

Filesize
48KB

Download
memory/2548-22-0x0000000000B30000-0x0000000000B38000-memory.dmp

Filesize
32KB

Download
memory/2548-25-0x000007FEF5640000-0x000007FEF602C000-memory.dmp

Filesize
9.9MB

Download
memory/2548-3-0x0000000000140000-0x0000000000148000-memory.dmp

Filesize
32KB

Download
memory/2548-41-0x000007FEF5640000-0x000007FEF602C000-memory.dmp

Filesize
9.9MB

Download
memory/2548-56-0x000007FEF5640000-0x000007FEF602C000-memory.dmp

Filesize
9.9MB

Download
memory/2548-67-0x000007FEF5640000-0x000007FEF602C000-memory.dmp

Filesize
9.9MB

Download
memory/2548-2-0x000007FEF5640000-0x000007FEF602C000-memory.dmp

Filesize
9.9MB

Download
memory/2548-70-0x000007FEF5640000-0x000007FEF602C000-memory.dmp

Filesize
9.9MB

Download
memory/2548-1-0x0000000000CD0000-0x0000000000D9A000-memory.dmp

Filesize
808KB

Download
memory/2644-72-0x0000000000E00000-0x0000000000ECA000-memory.dmp

Filesize
808KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads