bfa287c3db73f2fc309e70227616645d9304d810636c1d7fbef260dc7d428b82

Analysis

max time kernel
141s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17-04-2024 03:47

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General

Target

bfa287c3db73f2fc309e70227616645d9304d810636c1d7fbef260dc7d428b82.dll
Size

76KB
MD5

bc93ceb29f3ade627d68080dcb88bd4f
SHA1

66e56d85e465db3d7d28e333d7c832a8ad91772f
SHA256

bfa287c3db73f2fc309e70227616645d9304d810636c1d7fbef260dc7d428b82
SHA512

b5cc633449a4da5de915de52caa7c1659dd1f02de2bb7c7b3641ce7c75ba2bf5fe2ea5a25bb1b4cc6d83be36ccdebd9510d87f9d2e7977d3461937fb10675444
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Z7LC78yYy:c8y93KQjy7G55riF1cMo03tLCYfy

Score

9^/10

persistence upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 3 IoCs

resource	yara_rule
behavioral1/memory/2208-0-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral1/memory/2208-1-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral1/memory/2208-2-0x0000000010000000-0x0000000010030000-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/2208-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2208-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2208-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3052	2208	WerFault.exe	28

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2208	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1660 wrote to memory of 2208	1660	rundll32.exe	28
PID 1660 wrote to memory of 2208	1660	rundll32.exe	28
PID 1660 wrote to memory of 2208	1660	rundll32.exe	28
PID 1660 wrote to memory of 2208	1660	rundll32.exe	28
PID 1660 wrote to memory of 2208	1660	rundll32.exe	28
PID 1660 wrote to memory of 2208	1660	rundll32.exe	28
PID 1660 wrote to memory of 2208	1660	rundll32.exe	28
PID 2208 wrote to memory of 3052	2208	rundll32.exe	29
PID 2208 wrote to memory of 3052	2208	rundll32.exe	29
PID 2208 wrote to memory of 3052	2208	rundll32.exe	29
PID 2208 wrote to memory of 3052	2208	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bfa287c3db73f2fc309e70227616645d9304d810636c1d7fbef260dc7d428b82.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1660
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bfa287c3db73f2fc309e70227616645d9304d810636c1d7fbef260dc7d428b82.dll,#1
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2208
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2208 -s 332
    3⤵
    - Program crash
    PID:3052

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/2208-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2208-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2208-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download