8a92dc4c0977baedaf8b7f8e0397000e7757b9afd29fa8f1d77398054b85217b

Analysis

max time kernel
140s
max time network
120s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
17/05/2024, 01:05

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General

Target

8a92dc4c0977baedaf8b7f8e0397000e7757b9afd29fa8f1d77398054b85217b.dll
Size

76KB
MD5

f06c2e9026710893cadc00b5ba1ed0a1
SHA1

fdce8a34b9fa8baa7fd923d6104c5cd4dcfb9b89
SHA256

8a92dc4c0977baedaf8b7f8e0397000e7757b9afd29fa8f1d77398054b85217b
SHA512

d1f77c87647db5fca4989f338210cb39772d27f5df38088bec14e4cfcbd4671e0aef99a72d6484df12386f520e6fa827465cfcd7fd7f329b42279f3aa6d891c8
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Zq:c8y93KQjy7G55riF1cMo03I

Score

9^/10

persistence upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 3 IoCs

resource	yara_rule
behavioral1/memory/2076-1-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral1/memory/2076-0-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral1/memory/2076-2-0x0000000010000000-0x0000000010030000-memory.dmp	UPX

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2076-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2076-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2076-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2076	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2076	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2076	2084	rundll32.exe	28
PID 2084 wrote to memory of 2076	2084	rundll32.exe	28
PID 2084 wrote to memory of 2076	2084	rundll32.exe	28
PID 2084 wrote to memory of 2076	2084	rundll32.exe	28
PID 2084 wrote to memory of 2076	2084	rundll32.exe	28
PID 2084 wrote to memory of 2076	2084	rundll32.exe	28
PID 2084 wrote to memory of 2076	2084	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8a92dc4c0977baedaf8b7f8e0397000e7757b9afd29fa8f1d77398054b85217b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\8a92dc4c0977baedaf8b7f8e0397000e7757b9afd29fa8f1d77398054b85217b.dll,#1
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2076

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/2076-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2076-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2076-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download