87cf2004c02c4ecff63ce17d16ddf887e38cd4a8256b3847c078f89a5204efae

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
27/07/2024, 09:42

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General

Target

77b76bdfceebc9e121909a05110a9a67_JaffaCakes118.exe
Size

23KB
MD5

77b76bdfceebc9e121909a05110a9a67
SHA1

49679fc9e65d328648194a66a14044bf64af01bc
SHA256

87cf2004c02c4ecff63ce17d16ddf887e38cd4a8256b3847c078f89a5204efae
SHA512

c0940efc55b2440d5c9fa97180796d1becfe86d5c8dbc15a9d5bed383e046c84d2e8b264079dc706bc7aabecfc44abb7ce541d8de50d6ea0e9485a48acdff10a
SSDEEP

384:Z3f7Pi4i+rK8Yn81j9cAyngJA62zbzo5etDA3+t0hNowt4uVml5e41L:ZzVr9mU5ks5s4WTe41

Score

7^/10

discovery upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2368-0-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral2/memory/2368-4-0x0000000000400000-0x0000000000413000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\svchost.exe:ext.exe	77b76bdfceebc9e121909a05110a9a67_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\fci.exe	77b76bdfceebc9e121909a05110a9a67_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\fci.exe	77b76bdfceebc9e121909a05110a9a67_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2368 set thread context of 2788	2368	77b76bdfceebc9e121909a05110a9a67_JaffaCakes118.exe	84

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3020	2788	WerFault.exe	84

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	77b76bdfceebc9e121909a05110a9a67_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2788	2368	77b76bdfceebc9e121909a05110a9a67_JaffaCakes118.exe	84
PID 2368 wrote to memory of 2788	2368	77b76bdfceebc9e121909a05110a9a67_JaffaCakes118.exe	84
PID 2368 wrote to memory of 2788	2368	77b76bdfceebc9e121909a05110a9a67_JaffaCakes118.exe	84
PID 2368 wrote to memory of 524	2368	77b76bdfceebc9e121909a05110a9a67_JaffaCakes118.exe	86
PID 2368 wrote to memory of 524	2368	77b76bdfceebc9e121909a05110a9a67_JaffaCakes118.exe	86
PID 2368 wrote to memory of 524	2368	77b76bdfceebc9e121909a05110a9a67_JaffaCakes118.exe	86

C:\Users\Admin\AppData\Local\Temp\77b76bdfceebc9e121909a05110a9a67_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\77b76bdfceebc9e121909a05110a9a67_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  PID:2788
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2788 -s 200
    3⤵
    - Program crash
    PID:3020
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\5832707.bat
  2⤵
  - System Location Discovery: System Language Discovery
  PID:524

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2788 -ip 2788
1⤵
PID:2188

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\5832707.bat

Filesize
263B

MD5
609a4261f1d299aea2bfd60f97bd58aa

SHA1
e79866884944b64ef05f5d952d84009c1c021784

SHA256
0a5f3070a364a67a58497fe5830a6b7bd25dedb1ceccf1e6320d1753bb263bd3

SHA512
021456fc9fb99c95fdabf32f80348f50047366e95feedf02fa96240de98668da6adef25bd2f20c7d6c262b1e6b329dc4e32af04f36e239ea1b2788f3dc60c3fb

Download Submit
memory/2368-0-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2368-4-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download