ba54531fde470207f2fe239c7c340d0529f46eff8c184b25736b3c4f13f72208

General

Target

ba54531fde470207f2fe239c7c340d0529f46eff8c184b25736b3c4f13f72208.exe
Size

713KB
MD5

65bf8f83dffef62d1579503822c3b790
SHA1

df810334f2dd62277e8c431c88fb31f8c57319c2
SHA256

ba54531fde470207f2fe239c7c340d0529f46eff8c184b25736b3c4f13f72208
SHA512

af7638c01a4f8acb79b5604d0062b8fd3239a77236fc7c5d824ddce0b1a644abb3c93276e6c0550f48083207648229c993aeb75e58fa8d7998679b4cb45b76a1
SSDEEP

12288:Vs+ApVpEYSOPuBOawRa9rBDUGNmX65+SxNPFQbGlHYy/mqEcFlp/j4QWSgBFl:itE30yrBIhKHPFQC+mEspLDW9

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4700	ba54531fde470207f2fe239c7c340d0529f46eff8c184b25736b3c4f13f72208.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4808-133-0x0000000000400000-0x000000000059D000-memory.dmp	upx
behavioral2/memory/4808-135-0x0000000000400000-0x000000000059D000-memory.dmp	upx
behavioral2/memory/4808-138-0x0000000000400000-0x000000000059D000-memory.dmp	upx
behavioral2/memory/4808-140-0x0000000000400000-0x000000000059D000-memory.dmp	upx
behavioral2/memory/4808-141-0x0000000000400000-0x000000000059D000-memory.dmp	upx
behavioral2/memory/4700-144-0x0000000000400000-0x000000000059D000-memory.dmp	upx
behavioral2/memory/4700-145-0x0000000000400000-0x000000000059D000-memory.dmp	upx

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	ba54531fde470207f2fe239c7c340d0529f46eff8c184b25736b3c4f13f72208.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run	ba54531fde470207f2fe239c7c340d0529f46eff8c184b25736b3c4f13f72208.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ba54531fde470207f2fe239c7c340d0529f46eff8c184b25736b3c4f13f72208 = "C:\\ProgramData\\System\\ba54531fde470207f2fe239c7c340d0529f46eff8c184b25736b3c4f13f72208.exe"	ba54531fde470207f2fe239c7c340d0529f46eff8c184b25736b3c4f13f72208.exe

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

System Information Discovery
T1082

Program crash 8 IoCs

pid	pid_target	Process	procid_target
2544	4808	WerFault.exe	81
4280	4808	WerFault.exe	81
5012	4808	WerFault.exe	81
4688	4808	WerFault.exe	81
1852	4808	WerFault.exe	81
1144	4808	WerFault.exe	81
3772	4808	WerFault.exe	81
4384	4700	WerFault.exe	94

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4808 wrote to memory of 4700	4808	ba54531fde470207f2fe239c7c340d0529f46eff8c184b25736b3c4f13f72208.exe	94
PID 4808 wrote to memory of 4700	4808	ba54531fde470207f2fe239c7c340d0529f46eff8c184b25736b3c4f13f72208.exe	94
PID 4808 wrote to memory of 4700	4808	ba54531fde470207f2fe239c7c340d0529f46eff8c184b25736b3c4f13f72208.exe	94

C:\Users\Admin\AppData\Local\Temp\ba54531fde470207f2fe239c7c340d0529f46eff8c184b25736b3c4f13f72208.exe
"C:\Users\Admin\AppData\Local\Temp\ba54531fde470207f2fe239c7c340d0529f46eff8c184b25736b3c4f13f72208.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4808
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 816
  2⤵
  - Program crash
  PID:2544
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 912
  2⤵
  - Program crash
  PID:4280
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 988
  2⤵
  - Program crash
  PID:5012
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 988
  2⤵
  - Program crash
  PID:4688
- C:\ProgramData\System\ba54531fde470207f2fe239c7c340d0529f46eff8c184b25736b3c4f13f72208.exe
  "C:\ProgramData\System\ba54531fde470207f2fe239c7c340d0529f46eff8c184b25736b3c4f13f72208.exe"
  2⤵
  - Executes dropped EXE
  PID:4700
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4700 -s 700
    3⤵
    - Program crash
    PID:4384
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 1224
  2⤵
  - Program crash
  PID:1852
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 572
  2⤵
  - Program crash
  PID:1144
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 244
  2⤵
  - Program crash
  PID:3772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4808 -ip 4808
1⤵
PID:4148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4808 -ip 4808
1⤵
PID:228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4808 -ip 4808
1⤵
PID:3840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4808 -ip 4808
1⤵
PID:3476

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4808 -ip 4808
1⤵
PID:5096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 4808 -ip 4808
1⤵
PID:1268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4808 -ip 4808
1⤵
PID:1352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 4700 -ip 4700
1⤵
PID:4576

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\System\ba54531fde470207f2fe239c7c340d0529f46eff8c184b25736b3c4f13f72208.exe

Filesize
713KB

MD5
65bf8f83dffef62d1579503822c3b790

SHA1
df810334f2dd62277e8c431c88fb31f8c57319c2

SHA256
ba54531fde470207f2fe239c7c340d0529f46eff8c184b25736b3c4f13f72208

SHA512
af7638c01a4f8acb79b5604d0062b8fd3239a77236fc7c5d824ddce0b1a644abb3c93276e6c0550f48083207648229c993aeb75e58fa8d7998679b4cb45b76a1

Download Submit
memory/4700-139-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/4700-145-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/4700-144-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/4700-142-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/4700-143-0x0000000002260000-0x00000000023FD000-memory.dmp

Filesize
1.6MB

Download
memory/4808-138-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/4808-140-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/4808-141-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/4808-132-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/4808-135-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/4808-134-0x0000000002380000-0x000000000251D000-memory.dmp

Filesize
1.6MB

Download
memory/4808-133-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download

Analysis

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