2d38747980ec02a8f957db282c3b02b1b3aafe3d1a1734a6144a0f1877a724d4

General

Target

2d38747980ec02a8f957db282c3b02b1b3aafe3d1a1734a6144a0f1877a724d4.exe
Size

134KB
MD5

cd10dd77716897a82f8adee4a295e51e
SHA1

cef504d1067bccb3e31c884d9291237e2c3379c5
SHA256

2d38747980ec02a8f957db282c3b02b1b3aafe3d1a1734a6144a0f1877a724d4
SHA512

3bc18d937ab0d0700fcb41ac0d5d38e9020ee6a10b73ace4528ca7d91fcad19e0049803f26616f895c1045c65a41fe8cbce5e7db2a2ac9c5b3098ca3a4d3afdf
SSDEEP

1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOk:YfU/WF6QMauSuiWNi9eNOl0007NZIOk

Score

9^/10

Malware Config

Signatures

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral1/files/0x0039000000016255-1.dat	UPX
behavioral1/memory/2020-4-0x0000000000AB0000-0x0000000000AD8000-memory.dmp	UPX
behavioral1/memory/2092-7-0x0000000001020000-0x0000000001048000-memory.dmp	UPX
behavioral1/memory/2092-9-0x0000000001020000-0x0000000001048000-memory.dmp	UPX
behavioral1/memory/2020-10-0x0000000000AB0000-0x0000000000AD8000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
2796	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2092	wuauclt.exe

Loads dropped DLL 1 IoCs

pid	Process
2020	2d38747980ec02a8f957db282c3b02b1b3aafe3d1a1734a6144a0f1877a724d4.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0039000000016255-1.dat	upx
behavioral1/memory/2020-4-0x0000000000AB0000-0x0000000000AD8000-memory.dmp	upx
behavioral1/memory/2092-7-0x0000000001020000-0x0000000001048000-memory.dmp	upx
behavioral1/memory/2092-9-0x0000000001020000-0x0000000001048000-memory.dmp	upx
behavioral1/memory/2020-10-0x0000000000AB0000-0x0000000000AD8000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run"	2d38747980ec02a8f957db282c3b02b1b3aafe3d1a1734a6144a0f1877a724d4.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2020 wrote to memory of 2092	2020	2d38747980ec02a8f957db282c3b02b1b3aafe3d1a1734a6144a0f1877a724d4.exe	28
PID 2020 wrote to memory of 2092	2020	2d38747980ec02a8f957db282c3b02b1b3aafe3d1a1734a6144a0f1877a724d4.exe	28
PID 2020 wrote to memory of 2092	2020	2d38747980ec02a8f957db282c3b02b1b3aafe3d1a1734a6144a0f1877a724d4.exe	28
PID 2020 wrote to memory of 2092	2020	2d38747980ec02a8f957db282c3b02b1b3aafe3d1a1734a6144a0f1877a724d4.exe	28
PID 2020 wrote to memory of 2796	2020	2d38747980ec02a8f957db282c3b02b1b3aafe3d1a1734a6144a0f1877a724d4.exe	29
PID 2020 wrote to memory of 2796	2020	2d38747980ec02a8f957db282c3b02b1b3aafe3d1a1734a6144a0f1877a724d4.exe	29
PID 2020 wrote to memory of 2796	2020	2d38747980ec02a8f957db282c3b02b1b3aafe3d1a1734a6144a0f1877a724d4.exe	29
PID 2020 wrote to memory of 2796	2020	2d38747980ec02a8f957db282c3b02b1b3aafe3d1a1734a6144a0f1877a724d4.exe	29

C:\Users\Admin\AppData\Local\Temp\2d38747980ec02a8f957db282c3b02b1b3aafe3d1a1734a6144a0f1877a724d4.exe
"C:\Users\Admin\AppData\Local\Temp\2d38747980ec02a8f957db282c3b02b1b3aafe3d1a1734a6144a0f1877a724d4.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2020
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  PID:2092
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\2d38747980ec02a8f957db282c3b02b1b3aafe3d1a1734a6144a0f1877a724d4.exe" >> NUL
  2⤵
  - Deletes itself
  PID:2796

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\ProgramData\Update\wuauclt.exe

Filesize
134KB

MD5
89db3fee66ab5c5079d361aa317b85cd

SHA1
b3ee23b7b49eb53c1fd55964d50df05276bd5b3d

SHA256
cdd3cfe7e90f9c75fad52b23dc0429f57f4937082b700977cb4b8be7de0dacc2

SHA512
1d3fc88acc939a940806cd32d5c454ffd9821791713dc2d6ddcf80d2bbe02b1d2aed3d7b289634a7236f37a6e29afb3ce95216531530e21146ef7dc2f3a6522c

Download Submit
memory/2020-5-0x00000000000F0000-0x0000000000118000-memory.dmp

Filesize
160KB

Download
memory/2020-4-0x0000000000AB0000-0x0000000000AD8000-memory.dmp

Filesize
160KB

Download
memory/2020-8-0x00000000000F0000-0x0000000000118000-memory.dmp

Filesize
160KB

Download
memory/2020-10-0x0000000000AB0000-0x0000000000AD8000-memory.dmp

Filesize
160KB

Download
memory/2092-7-0x0000000001020000-0x0000000001048000-memory.dmp

Filesize
160KB

Download
memory/2092-9-0x0000000001020000-0x0000000001048000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads