dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de

General

Target

dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
Size

205KB
MD5

6380244bac8fe3f10597899f69014046
SHA1

3bff8965f290e3ef1e1af3ced96daff48a7ffe2f
SHA256

dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de
SHA512

17cb5357f497c42f30022be5f6cbaebe142abf9da5c7414563d5caf965646b1b14cada25f7cc8844af16167ed46e6e4c2bfc8643ebf8b31ae94c1ed1146b621d
SSDEEP

6144:9ULkVO8A1X2og0tEHH45Y0KTIVaTycTVDNe4d:NMJ1X2og0MHGKT3RRwE

Score

8^/10

persistence upx

Malware Config

Signatures

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4920-132-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral2/memory/4920-137-0x0000000000400000-0x000000000048C000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Yahoo Messengger = "C:\\Windows\\system32\\SSVICHOSST.exe"	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe

Enumerates connected drives 3 TTPs 24 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\k:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\t:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\w:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\l:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\m:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\o:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\x:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\g:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\h:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\i:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\j:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\z:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\e:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\f:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\r:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\s:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\q:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\u:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\v:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\y:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\a:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\b:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\n:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened (read-only)	\??\p:	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\SSVICHOSST.exe	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened for modification	C:\Windows\SysWOW64\SSVICHOSST.exe	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened for modification	C:\Windows\SysWOW64\autorun.ini	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SSVICHOSST.exe	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
File opened for modification	C:\Windows\SSVICHOSST.exe	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4920	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
4920	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
4920	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
4920	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
4920	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
4920	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
4920	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
4920	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4920 wrote to memory of 992	4920	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe	83
PID 4920 wrote to memory of 992	4920	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe	83
PID 4920 wrote to memory of 992	4920	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe	83
PID 992 wrote to memory of 3972	992	cmd.exe	85
PID 992 wrote to memory of 3972	992	cmd.exe	85
PID 992 wrote to memory of 3972	992	cmd.exe	85
PID 4920 wrote to memory of 4488	4920	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe	86
PID 4920 wrote to memory of 4488	4920	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe	86
PID 4920 wrote to memory of 4488	4920	dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe	86
PID 4488 wrote to memory of 5020	4488	cmd.exe	88
PID 4488 wrote to memory of 5020	4488	cmd.exe	88
PID 4488 wrote to memory of 5020	4488	cmd.exe	88

C:\Users\Admin\AppData\Local\Temp\dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe
"C:\Users\Admin\AppData\Local\Temp\dba2adb7e4fe3a38fbaca39cac9b5f5c822e34ba8d32f9df52cdedc71b9829de.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4920
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /C AT /delete /yes
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:992
- - C:\Windows\SysWOW64\at.exe
    AT /delete /yes
    3⤵
    PID:3972
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /C AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\SSVICHOSST.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4488
- - C:\Windows\SysWOW64\at.exe
    AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\SSVICHOSST.exe
    3⤵
    PID:5020

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4920-132-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/4920-137-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download

Analysis

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