306a86a5f20c305839fc374206ddc20bc38c88531d602782351871b0826dec1b

General

Target

UnHAnaAW.arm7
Size

157KB
MD5

5a6f9f201e4ca6a7fdac10e632cb58b8
SHA1

930ce61517445d3401fa17e960c960772abd5b1b
SHA256

306a86a5f20c305839fc374206ddc20bc38c88531d602782351871b0826dec1b
SHA512

5aa41e11345d756f0e2d043e30cb47a7f0a2d42f1216da2b394580e69a3f88925adee9aa2612cee42ad353add2ab65220fd732048c352d34fcbb1147fbff543e

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 10 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\arm7_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\arm7_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\.arm7\ = "arm7_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\arm7_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\arm7_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\arm7_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\.arm7	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\arm7_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

1680 AcroRd32.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

1680 AcroRd32.exe
1680 AcroRd32.exe
1680 AcroRd32.exe

pid	process
1680	AcroRd32.exe

pid	process
1680	AcroRd32.exe
1680	AcroRd32.exe
1680	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1908 wrote to memory of 768	1908	cmd.exe	rundll32.exe
PID 1908 wrote to memory of 768	1908	cmd.exe	rundll32.exe
PID 1908 wrote to memory of 768	1908	cmd.exe	rundll32.exe
PID 768 wrote to memory of 1680	768	rundll32.exe	AcroRd32.exe
PID 768 wrote to memory of 1680	768	rundll32.exe	AcroRd32.exe
PID 768 wrote to memory of 1680	768	rundll32.exe	AcroRd32.exe
PID 768 wrote to memory of 1680	768	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\UnHAnaAW.arm7
1⤵
- Suspicious use of WriteProcessMemory
PID:1908

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\UnHAnaAW.arm7
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:768

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\UnHAnaAW.arm7"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:1680

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/768-55-0x0000000000000000-mapping.dmp

Download
memory/1680-57-0x0000000000000000-mapping.dmp

Download
memory/1680-58-0x0000000074F01000-0x0000000074F03000-memory.dmp

Filesize
8KB

Download
memory/1908-54-0x000007FEFB7E1000-0x000007FEFB7E3000-memory.dmp

Filesize
8KB

Download

Analysis

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