91321c2f5d78390157596e7295dfcd5a8e84aba1764747c2616db1d3da7eb6f0

Analysis

max time kernel
134s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18/08/2024, 18:39

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General

Target

a7c75ee1cfc5db94205d58ff4a1d41a4_JaffaCakes118.exe
Size

306KB
MD5

a7c75ee1cfc5db94205d58ff4a1d41a4
SHA1

c3d69d118d9c9f5466ab7ba545640724e87e66d0
SHA256

91321c2f5d78390157596e7295dfcd5a8e84aba1764747c2616db1d3da7eb6f0
SHA512

72b021290c5aee3151045c9eeca5b9ea37dfb97681a23eaa709fb84e86d974994767c370f2102287bad2b3099d5f2e7ca1546d3a26c3c632add41622a1e649e3
SSDEEP

6144:XGhhB6SqMLF1nUujYJToOwBo1Nl9pGwVHKUYWo6tSXCzw9G:WQSqMh1HKoO4ozjpG4KW1Syz

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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	a7c75ee1cfc5db94205d58ff4a1d41a4_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
1940	test.exe
4700	test.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4700-11-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1940 set thread context of 4700	1940	test.exe	94

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
1388	4700	WerFault.exe	94

System Location Discovery: System Language Discovery 1 TTPs 2 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	a7c75ee1cfc5db94205d58ff4a1d41a4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	test.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4108 wrote to memory of 1940	4108	a7c75ee1cfc5db94205d58ff4a1d41a4_JaffaCakes118.exe	93
PID 4108 wrote to memory of 1940	4108	a7c75ee1cfc5db94205d58ff4a1d41a4_JaffaCakes118.exe	93
PID 4108 wrote to memory of 1940	4108	a7c75ee1cfc5db94205d58ff4a1d41a4_JaffaCakes118.exe	93
PID 1940 wrote to memory of 4700	1940	test.exe	94
PID 1940 wrote to memory of 4700	1940	test.exe	94
PID 1940 wrote to memory of 4700	1940	test.exe	94
PID 1940 wrote to memory of 4700	1940	test.exe	94
PID 1940 wrote to memory of 4700	1940	test.exe	94

C:\Users\Admin\AppData\Local\Temp\a7c75ee1cfc5db94205d58ff4a1d41a4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a7c75ee1cfc5db94205d58ff4a1d41a4_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4108
- C:\Users\Admin\AppData\Local\Temp\test.exe
  "C:\Users\Admin\AppData\Local\Temp\test.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1940
- - C:\Users\Admin\AppData\Local\Temp\test.exe
    C:\Users\Admin\AppData\Local\Temp\test.exe
    3⤵
    - Executes dropped EXE
    PID:4700
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4700 -s 12
      4⤵
      Program crash
      PID:1388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4700 -ip 4700
1⤵
PID:1664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\test.exe

Filesize
283KB

MD5
062f9e67bde3c4cc69c46b08486ffbf7

SHA1
12f10b870415f7ccfe9edb7d03ee293c8df7bc24

SHA256
3c5643afbd5805b05b973fb7687295c04535cccf6bf3ab335b0355b4ad0a74ea

SHA512
66a62e547520ddd8bb47b1898d0ff2a925127195043aab2057aacdd2dc9a96fcaf4290d0016106ce00ae9a564e7ca5a2a581a9a68d55dc8c3fc17dcb060bdd3a

Download Submit
memory/4700-11-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

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