a52c9e3f4403ff243f6593222dd6761f959fbc47c77daabd89c338ae7e3dde7e

Analysis

max time kernel
140s
max time network
122s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
29/05/2024, 00:44

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General

Target

a52c9e3f4403ff243f6593222dd6761f959fbc47c77daabd89c338ae7e3dde7e.dll
Size

76KB
MD5

377d2016b73d96fb6173a5425ee2a357
SHA1

0bcdb89b3aa567ea3dccb872e32c8c249da0b5e2
SHA256

a52c9e3f4403ff243f6593222dd6761f959fbc47c77daabd89c338ae7e3dde7e
SHA512

a0bb45753eab2af7c967253f85a5b07fff1a695462f52a55069a3bfc6c964887042c4b266a2457fcff302e850a2f03ed98b3f5d08330e47b1d69c7590db48906
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZZvxN:c8y93KQjy7G55riF1cMo03z3

Score

9^/10

persistence upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral1/memory/2260-1-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral1/memory/2260-2-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral1/memory/2260-0-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral1/memory/2260-3-0x0000000010000000-0x0000000010030000-memory.dmp	UPX

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2260-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2260-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2260-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2260-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2260	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2260	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2248 wrote to memory of 2260	2248	rundll32.exe	28
PID 2248 wrote to memory of 2260	2248	rundll32.exe	28
PID 2248 wrote to memory of 2260	2248	rundll32.exe	28
PID 2248 wrote to memory of 2260	2248	rundll32.exe	28
PID 2248 wrote to memory of 2260	2248	rundll32.exe	28
PID 2248 wrote to memory of 2260	2248	rundll32.exe	28
PID 2248 wrote to memory of 2260	2248	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a52c9e3f4403ff243f6593222dd6761f959fbc47c77daabd89c338ae7e3dde7e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2248
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a52c9e3f4403ff243f6593222dd6761f959fbc47c77daabd89c338ae7e3dde7e.dll,#1
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2260

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2260-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2260-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2260-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2260-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download