54fa4651e925e0fd845ca5652d57a010c26e4ab799211b8d3299cbb7dec35ae8

General

Target
9b8ec9e094676d88b02f038f318afd86.exe
Size 648KB
Sample220311-mz476shbd2
SHA256 54fa4651e925e0fd845ca5652d57a010c26e4ab799211b8d3299cbb7dec35ae8
MD5 9b8ec9e094676d88b02f038f318afd86
SHA1 65f99e529982f1c1a5cf9eb59f60edfeecdf2eec
SHA512 adda29b5ad3a05f9d34ba4a033cc400d9d45cf82887ac292f7174b3853a2d0edddecee939f32ab784e4c2e4cc58631e7bb5137d353546f5024cb7a402e4bd4b8
MD5 SHA1 SHA512

Score

9^/10

Malware Config

Signatures

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/620-139-0x0000000000400000-0x0000000000498000-memory.dmp	MailPassView
behavioral2/memory/620-141-0x0000000000400000-0x0000000000498000-memory.dmp	MailPassView
behavioral2/memory/620-142-0x0000000000400000-0x0000000000498000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/620-139-0x0000000000400000-0x0000000000498000-memory.dmp	WebBrowserPassView
behavioral2/memory/620-141-0x0000000000400000-0x0000000000498000-memory.dmp	WebBrowserPassView
behavioral2/memory/620-142-0x0000000000400000-0x0000000000498000-memory.dmp	WebBrowserPassView

Nirsoft 3 IoCs

resource	yara_rule
behavioral2/memory/620-139-0x0000000000400000-0x0000000000498000-memory.dmp	Nirsoft
behavioral2/memory/620-141-0x0000000000400000-0x0000000000498000-memory.dmp	Nirsoft
behavioral2/memory/620-142-0x0000000000400000-0x0000000000498000-memory.dmp	Nirsoft

Executes dropped EXE 2 IoCs

pid	Process
4804	pjavpo.exe
620	pjavpo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4804 set thread context of 620	4804	pjavpo.exe	82

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1428	620	WerFault.exe	82

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1936 wrote to memory of 4804	1936	9b8ec9e094676d88b02f038f318afd86.exe	81
PID 1936 wrote to memory of 4804	1936	9b8ec9e094676d88b02f038f318afd86.exe	81
PID 1936 wrote to memory of 4804	1936	9b8ec9e094676d88b02f038f318afd86.exe	81
PID 4804 wrote to memory of 620	4804	pjavpo.exe	82
PID 4804 wrote to memory of 620	4804	pjavpo.exe	82
PID 4804 wrote to memory of 620	4804	pjavpo.exe	82
PID 4804 wrote to memory of 620	4804	pjavpo.exe	82
PID 4804 wrote to memory of 620	4804	pjavpo.exe	82
PID 4804 wrote to memory of 620	4804	pjavpo.exe	82
PID 4804 wrote to memory of 620	4804	pjavpo.exe	82
PID 4804 wrote to memory of 620	4804	pjavpo.exe	82
PID 4804 wrote to memory of 620	4804	pjavpo.exe	82
PID 4804 wrote to memory of 620	4804	pjavpo.exe	82

C:\Users\Admin\AppData\Local\Temp\9b8ec9e094676d88b02f038f318afd86.exe
"C:\Users\Admin\AppData\Local\Temp\9b8ec9e094676d88b02f038f318afd86.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Users\Admin\AppData\Local\Temp\pjavpo.exe
  C:\Users\Admin\AppData\Local\Temp\pjavpo.exe C:\Users\Admin\AppData\Local\Temp\brtwja
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4804
- - C:\Users\Admin\AppData\Local\Temp\pjavpo.exe
    C:\Users\Admin\AppData\Local\Temp\pjavpo.exe C:\Users\Admin\AppData\Local\Temp\brtwja
    3⤵
    - Executes dropped EXE
    PID:620
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 620 -s 428
      4⤵
      Program crash
      PID:1428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 620 -ip 620
1⤵
PID:1160

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/620-139-0x0000000000400000-0x0000000000498000-memory.dmp

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memory/620-141-0x0000000000400000-0x0000000000498000-memory.dmp

Download

memory/620-142-0x0000000000400000-0x0000000000498000-memory.dmp

Download

memory/4804-138-0x00000000005E0000-0x0000000000602000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads