cb455f26c5fa61924a5b68932d292132f345ef27a90a4e8127fbf2e04e4fa3f6

General

Target

3b50835746fefe11419821b3fcda9de4_JaffaCakes118.exe
Size

279KB
MD5

3b50835746fefe11419821b3fcda9de4
SHA1

0c135f0a773c84310eacab6951e319c178c6cf75
SHA256

cb455f26c5fa61924a5b68932d292132f345ef27a90a4e8127fbf2e04e4fa3f6
SHA512

2730fa59710566c363373a3ceae2e38ac87b446f1ff912e09e214e852c4499abe02441dee2914e9f5b1c76aba8cf468db4241afa44bc6ab4a8526eeba8c2b96c
SSDEEP

6144:KZuuObR8sVImcyYm5ENR4NAKSWiSQJeuuTN+s/3TcLobMSDWNn3j23LeDGS:ZV+mzWOSWiSQJnu//0obGnzoLeDGS

Score

7^/10

discovery upx

Malware Config

Signatures

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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	3b50835746fefe11419821b3fcda9de4_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
3504	setup2.exe
4860	setup1.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0007000000023cb2-6.dat	upx
behavioral2/memory/3504-11-0x0000000000400000-0x0000000000511000-memory.dmp	upx
behavioral2/memory/3504-18-0x0000000000400000-0x0000000000511000-memory.dmp	upx
behavioral2/files/0x0009000000023cb1-21.dat	upx
behavioral2/memory/4860-26-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/4860-28-0x0000000000400000-0x000000000044C000-memory.dmp	upx

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3968	4860	WerFault.exe	89

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3b50835746fefe11419821b3fcda9de4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	setup2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	setup1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 3504	2348	3b50835746fefe11419821b3fcda9de4_JaffaCakes118.exe	86
PID 2348 wrote to memory of 3504	2348	3b50835746fefe11419821b3fcda9de4_JaffaCakes118.exe	86
PID 2348 wrote to memory of 3504	2348	3b50835746fefe11419821b3fcda9de4_JaffaCakes118.exe	86
PID 3504 wrote to memory of 936	3504	setup2.exe	87
PID 3504 wrote to memory of 936	3504	setup2.exe	87
PID 3504 wrote to memory of 936	3504	setup2.exe	87
PID 2348 wrote to memory of 4860	2348	3b50835746fefe11419821b3fcda9de4_JaffaCakes118.exe	89
PID 2348 wrote to memory of 4860	2348	3b50835746fefe11419821b3fcda9de4_JaffaCakes118.exe	89
PID 2348 wrote to memory of 4860	2348	3b50835746fefe11419821b3fcda9de4_JaffaCakes118.exe	89

C:\Users\Admin\AppData\Local\Temp\3b50835746fefe11419821b3fcda9de4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3b50835746fefe11419821b3fcda9de4_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2348
- C:\Users\Admin\AppData\Local\Temp\RarSFX0\setup2.exe
  "C:\Users\Admin\AppData\Local\Temp\RarSFX0\setup2.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3504
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\\uninste57c97a.bat" "C:\Users\Admin\AppData\Local\Temp\RarSFX0\setup2.exe""
    3⤵
    - System Location Discovery: System Language Discovery
    PID:936
- C:\Users\Admin\AppData\Local\Temp\RarSFX0\setup1.exe
  "C:\Users\Admin\AppData\Local\Temp\RarSFX0\setup1.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4860
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4860 -s 228
    3⤵
    - Program crash
    PID:3968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4860 -ip 4860
1⤵
PID:3448

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\RarSFX0\setup1.exe

Filesize
128KB

MD5
2bbab5ecad0ed9a910d5fd7d0155bd3e

SHA1
b68da51441eca422c850ef1e6c2dbac5cdcabea1

SHA256
5e8caa5e29c6e54e00e72dfb502ed5a18fcafb9a644a54045696e5bd5cd149b6

SHA512
39d3e8092eae79cc91336e4f8a33bc34f6745db0bf3ffd666349221f979bac9c78be7581f16dae2241822b5a1e2ac9ab38ed327ab095ac603fcb58b1fccabb50

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\setup2.exe

Filesize
58KB

MD5
5ee4fb801d94a2a4636c760e1474a68f

SHA1
13d3db6ec1d4856ffe0722889c42d75d4031c47b

SHA256
77a1e4ecd23c054cf91ebe828e294e71434a005ccbea3c465aac89e2dd69dabb

SHA512
6e5ee88563c9f9f2dc39efdaae6bdc2b6f465e8e71dac6f38f78d32fa9bc80c17488104cca6fd37a40ec1504c03989abf90574c65de517631bf4f10b0fbdbd58

Download Submit
C:\Users\Admin\AppData\Local\Temp\uninste57c97a.bat

Filesize
59B

MD5
2988b921fbed03f9c93c5d538932bbe3

SHA1
4b791b3d59ae76ff091c2cf201b40f5d1b432a3f

SHA256
a1769979622d3d25829be12474ad32ccfdfcac59785dac2fc10ae49c300e4ea3

SHA512
2920c6e9851973371dc238da1ee3c63d41c7820637856ee92c67e9489c1790e3fad287d229440d124e60b978f6819d04b47c40de9034cbd9de422aaafc2b07f9

Download Submit
memory/2348-29-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3504-11-0x0000000000400000-0x0000000000511000-memory.dmp

Filesize
1.1MB

Download
memory/3504-18-0x0000000000400000-0x0000000000511000-memory.dmp

Filesize
1.1MB

Download
memory/4860-26-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4860-28-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

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