c91264a57ab869ff740c49580cd497f1fbc09c3edbb4067cdf93bb3916f9a46f

General

Target

1b3ffd03a9eb80ed0c4b22a0788fa1d9.dll
Size

92KB
MD5

1b3ffd03a9eb80ed0c4b22a0788fa1d9
SHA1

01cac2bc8041b3b102c860f2ef9eec8451144202
SHA256

c91264a57ab869ff740c49580cd497f1fbc09c3edbb4067cdf93bb3916f9a46f
SHA512

c9511776c6f938f59ae8a99e85f23c47566548f076ca041fcb061a55d444b23bbc53bb810f2e044c576d2cc3d216064b1aff4a61dd654354ff4020a14e6b2c46
SSDEEP

1536:O+pahnyzIaDd+dwffZdGpu+dmltVc075knAC3817fFwHVlmT7RY3n+Sy9c:FpcgIaDkqfnKDdmzp75aAC3Y7fFwV0cd

Score

8^/10

persistence upx

Malware Config

Signatures

Modifies Shared Task Scheduler registry keys 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler\{6F81A3D6-81A3-3C5E-4D6F-E7092B4D6F81}	rundll32.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1900-0-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/1900-8-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/1900-9-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/1900-10-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/1900-11-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/1900-12-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/1900-13-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/1900-14-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/1900-15-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/1900-16-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/1900-17-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/1900-18-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/1900-19-0x0000000000400000-0x000000000044F000-memory.dmp	upx

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\KN.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\KN.dll	rundll32.exe
File created	C:\Windows\SysWOW64\AD.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\AD.dll	rundll32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6F81A3D6-81A3-3C5E-4D6F-E7092B4D6F81}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6F81A3D6-81A3-3C5E-4D6F-E7092B4D6F81}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6F81A3D6-81A3-3C5E-4D6F-E7092B4D6F81}\	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6F81A3D6-81A3-3C5E-4D6F-E7092B4D6F81}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6F81A3D6-81A3-3C5E-4D6F-E7092B4D6F81}\InprocServer32\ = "C:\\Windows\\SysWow64\\KN.dll"	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4028 wrote to memory of 1900	4028	rundll32.exe	17
PID 4028 wrote to memory of 1900	4028	rundll32.exe	17
PID 4028 wrote to memory of 1900	4028	rundll32.exe	17

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1b3ffd03a9eb80ed0c4b22a0788fa1d9.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4028
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1b3ffd03a9eb80ed0c4b22a0788fa1d9.dll,#1
  2⤵
  - Modifies Shared Task Scheduler registry keys
  - Drops file in System32 directory
  - Modifies registry class
  PID:1900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1900-0-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1900-8-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1900-9-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1900-10-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1900-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1900-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1900-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1900-14-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1900-15-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1900-16-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1900-17-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1900-18-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1900-19-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1900-20-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1900-21-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads