0a1c60f5b2e147db560f005f7e3f61f697350b9a640b2abc4e993837b6701858

General

Target

4b5311553f7c779406873b54446e182d_JaffaCakes118.exe
Size

652KB
MD5

4b5311553f7c779406873b54446e182d
SHA1

5d0c00cfdd016c27c7994eaa076b023e4c48c867
SHA256

0a1c60f5b2e147db560f005f7e3f61f697350b9a640b2abc4e993837b6701858
SHA512

4e6c0012517dc0109bdeb03c7b38093174d77419c6059c52b869fdfb7b62926876d000010a80ba2a3c3227aa240bcaf6971e0bd7d3554cc04ac5bad45c816c4a
SSDEEP

12288:Ht/6L0+jUPAVMwC36G7j1247GtRrm8LaXJF3LjtVhCM0Q2zNHi:O0+jyuZC3FJ2CGS8GZF3LfVz2zNC

Score

7^/10

aspackv2 upx

Malware Config

Signatures

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x0009000000023414-5.dat	aspack_v212_v242

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-1-5-21-1176886754-713327781-2233697964-1000\Control Panel\International\Geo\Nation	É½¿ÚÉ½×Ô¶¯ÐÞ¸ÄÆ÷..exe

Executes dropped EXE 3 IoCs

pid	Process
1876	É½¿ÚÉ½×Ô¶¯ÐÞ¸ÄÆ÷..exe
4988	win.dat
1624	240643218.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4988-14-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral2/files/0x000800000002346b-15.dat	upx
behavioral2/memory/4988-30-0x0000000000400000-0x0000000000446000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\É½¿ÚÉ½×Ô¶¯ÐÞ¸ÄÆ÷..exe	4b5311553f7c779406873b54446e182d_JaffaCakes118.exe
File created	C:\Program Files\É½¿ÚÉ½×Ô¶¯ÐÞ¸ÄÆ÷..exe	4b5311553f7c779406873b54446e182d_JaffaCakes118.exe

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4112	1624	WerFault.exe	88
2320	1624	WerFault.exe	88

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4236	4b5311553f7c779406873b54446e182d_JaffaCakes118.exe
4236	4b5311553f7c779406873b54446e182d_JaffaCakes118.exe
1876	É½¿ÚÉ½×Ô¶¯ÐÞ¸ÄÆ÷..exe
1876	É½¿ÚÉ½×Ô¶¯ÐÞ¸ÄÆ÷..exe
4988	win.dat

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4236 wrote to memory of 1876	4236	4b5311553f7c779406873b54446e182d_JaffaCakes118.exe	86
PID 4236 wrote to memory of 1876	4236	4b5311553f7c779406873b54446e182d_JaffaCakes118.exe	86
PID 4236 wrote to memory of 1876	4236	4b5311553f7c779406873b54446e182d_JaffaCakes118.exe	86
PID 4236 wrote to memory of 4988	4236	4b5311553f7c779406873b54446e182d_JaffaCakes118.exe	87
PID 4236 wrote to memory of 4988	4236	4b5311553f7c779406873b54446e182d_JaffaCakes118.exe	87
PID 4236 wrote to memory of 4988	4236	4b5311553f7c779406873b54446e182d_JaffaCakes118.exe	87
PID 1876 wrote to memory of 1624	1876	É½¿ÚÉ½×Ô¶¯ÐÞ¸ÄÆ÷..exe	88
PID 1876 wrote to memory of 1624	1876	É½¿ÚÉ½×Ô¶¯ÐÞ¸ÄÆ÷..exe	88
PID 1876 wrote to memory of 1624	1876	É½¿ÚÉ½×Ô¶¯ÐÞ¸ÄÆ÷..exe	88

C:\Users\Admin\AppData\Local\Temp\4b5311553f7c779406873b54446e182d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4b5311553f7c779406873b54446e182d_JaffaCakes118.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4236
- C:\Program Files\É½¿ÚÉ½×Ô¶¯ÐÞ¸ÄÆ÷..exe
  "C:\Program Files\É½¿ÚÉ½×Ô¶¯ÐÞ¸ÄÆ÷..exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1876
- - C:\Users\Admin\AppData\Local\Temp\240643218.exe
    "C:\Users\Admin\AppData\Local\Temp\240643218.exe"
    3⤵
    - Executes dropped EXE
    PID:1624
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1624 -s 428
      4⤵
      Program crash
      PID:4112
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1624 -s 432
      4⤵
      Program crash
      PID:2320
- C:\Users\Admin\AppData\Local\Temp\win.dat
  win.dat
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:4988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1624 -ip 1624
1⤵
PID:180

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1624 -ip 1624
1⤵
PID:4216

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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:\Program Files\É½¿ÚÉ½×Ô¶¯ÐÞ¸ÄÆ÷..exe

Filesize
380KB

MD5
31e65bb383f197f66aa9a4adb6c06a22

SHA1
0a30690719ed4cea50c529ced337cf0da78ec660

SHA256
88240231c4dab2b0c75bc761eb6226b81e9c275b2476724481281563435d162f

SHA512
b758e621e225e4aee61815ef74a13734cc59fef83c8ca637756681dde066e033585d4f0d007d8335163d3ee8b50894ad9a1a2da486d62fd6e8aac63375f76daf

Download Submit
C:\Users\Admin\AppData\Local\Temp\240643218.exe

Filesize
135KB

MD5
41eef28a0b2c68c5d760b79ead4273a4

SHA1
8cfa58220d82dd8650c54380a0182fd2b63f85dc

SHA256
5c57925bd612a5c787270c8128ecb5178a033cc4ad2bd97a87fb668a05f131c3

SHA512
4ed441cb34251107ba69a9959c94ef28b444ead3d4418dad8fc13cfeb9f3eb834a15212417b650138cfc6f7340eef3528ed0d152d214dc7e02581bf6420d7100

Download Submit
C:\Users\Admin\AppData\Local\Temp\win.dat

Filesize
73KB

MD5
86564f27beec2dd8d1f3d911dcf6450a

SHA1
915f3a3163f330d64a386bf65c6639d68399402c

SHA256
a374052da740ceafb04c009c8382b6fb01168bb9e5eec525cd0a5baf6993e36b

SHA512
e2a544c5b9bc3e84e323d8f6c2321240d6145a8d1cd64f34a475d01d2d26dc3cb46a67fabcd3f0d4238f3450465e32bc43d41ebdaa32909c2165033a9f6c7602

Download Submit
memory/1624-27-0x0000000000010000-0x000000000004D000-memory.dmp

Filesize
244KB

Download
memory/1624-25-0x0000000000010000-0x000000000004D000-memory.dmp

Filesize
244KB

Download
memory/1624-29-0x0000000000010000-0x000000000004D000-memory.dmp

Filesize
244KB

Download
memory/1876-10-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1876-7-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1876-8-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1876-9-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1876-28-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4988-14-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/4988-30-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download

Analysis

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