a924b0bf1b61156ce5fb73d1a684197c6156330a4e0ebf6f178e0d50802515d2

Analysis

max time kernel
122s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05/10/2024, 06:27

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General

Target

1686afa0e7dbcd96cb091bd4b4a4a519_JaffaCakes118.exe
Size

531KB
MD5

1686afa0e7dbcd96cb091bd4b4a4a519
SHA1

2133859a698b1f78bf9dead44d3f41571e9c0818
SHA256

a924b0bf1b61156ce5fb73d1a684197c6156330a4e0ebf6f178e0d50802515d2
SHA512

86e76818c77b2ff9c9a863dad3a872ee45a8bc8fd53d90722fd19228d0b07ee4dbc1ea43fc1bcbfa67a6563459ea1bca642157c655f993ae55134d1f03657719
SSDEEP

768:wAHAK5abPsgP7tS3wjdfPo+jIy0vk3F4DXm8BiyhWqxpD36N4vxoz86F3c1CT8FL:vabPZSIfPVIy0s1TQijqb3jozDF3Ca8

Score

7^/10

discovery upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2128	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
2128	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\t322027.ini	1686afa0e7dbcd96cb091bd4b4a4a519_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\rpcss.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\rpcss.dll	rundll32.exe
File created	C:\Windows\SysWOW64\t322027.dll	rundll32.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2956-2-0x0000000000400000-0x0000000000487000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 3 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	1686afa0e7dbcd96cb091bd4b4a4a519_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2956	1686afa0e7dbcd96cb091bd4b4a4a519_JaffaCakes118.exe
2128	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2128	rundll32.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2956 wrote to memory of 2268	2956	1686afa0e7dbcd96cb091bd4b4a4a519_JaffaCakes118.exe	30
PID 2956 wrote to memory of 2268	2956	1686afa0e7dbcd96cb091bd4b4a4a519_JaffaCakes118.exe	30
PID 2956 wrote to memory of 2268	2956	1686afa0e7dbcd96cb091bd4b4a4a519_JaffaCakes118.exe	30
PID 2956 wrote to memory of 2268	2956	1686afa0e7dbcd96cb091bd4b4a4a519_JaffaCakes118.exe	30
PID 2268 wrote to memory of 2128	2268	cmd.exe	32
PID 2268 wrote to memory of 2128	2268	cmd.exe	32
PID 2268 wrote to memory of 2128	2268	cmd.exe	32
PID 2268 wrote to memory of 2128	2268	cmd.exe	32
PID 2268 wrote to memory of 2128	2268	cmd.exe	32
PID 2268 wrote to memory of 2128	2268	cmd.exe	32
PID 2268 wrote to memory of 2128	2268	cmd.exe	32
PID 2128 wrote to memory of 1252	2128	rundll32.exe	21

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1252
- C:\Users\Admin\AppData\Local\Temp\1686afa0e7dbcd96cb091bd4b4a4a519_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\1686afa0e7dbcd96cb091bd4b4a4a519_JaffaCakes118.exe"
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2956
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c C:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\~f76bb34.~~~ Inse C:\Users\Admin\AppData\Local\Temp\1686afa0e7dbcd96cb091bd4b4a4a519_JaffaCakes118.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2268
  - - C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\~f76bb34.~~~ Inse C:\Users\Admin\AppData\Local\Temp\1686afa0e7dbcd96cb091bd4b4a4a519_JaffaCakes118.exe
      4⤵
      Deletes itself
      Loads dropped DLL
      Drops file in System32 directory
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2128

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\~f76bb34.~~~

Filesize
502KB

MD5
bca08fbb14a8a4d4fb746edcc3a32428

SHA1
d6f1c0dccb59a776be00d59bf49f0f6969881c86

SHA256
29fd8e5e7947c9bf29e9ad61aa176fe98b7c8eb4d226539b027589f29c1f8d62

SHA512
305522b472af35bde7707ca4e237b3df69c04e234a56c88036b0b303b63fad781de2c14d466f99af6bdc4f2e982eccaae74ab3ab46b82556fd66bc5d07390e7c

Download Submit
memory/1252-9-0x0000000002620000-0x0000000002621000-memory.dmp

Filesize
4KB

Download
memory/2128-5-0x0000000010000000-0x0000000010029000-memory.dmp

Filesize
164KB

Download
memory/2956-2-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download