b89c231f6dcf0b73adf3111ac77a41dd604b4c59fe2fc5ac4eb61f26bc23c443

Analysis

max time kernel
149s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
18/04/2024, 10:57

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General

Target

f7d9fdb5587a91c8ab0ac23209619391_JaffaCakes118.exe
Size

20KB
MD5

f7d9fdb5587a91c8ab0ac23209619391
SHA1

6657cacd38d47e8a6945fe7cb4757f4eb5a7c978
SHA256

b89c231f6dcf0b73adf3111ac77a41dd604b4c59fe2fc5ac4eb61f26bc23c443
SHA512

0a7c2687d67255194ffd22c833a86b93d0157b75b3955d3cda9140841ec3a79eba8fd2399dc23a96def8e1b8e9a9393912b9f6569b30bf9b439e1d955a17135d
SSDEEP

384:IKkBB78HJUwxq1y83vFoPJE8osGRi+UqzPNe+VvXJL8Wpa0TTCziUuF5HV4Xf+iD:xvpt01h/FoPJE8osGRi+UqzPNe+VvXJu

Score

7^/10

persistence

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-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation	f7d9fdb5587a91c8ab0ac23209619391_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
1816	msisrv.exe

Executes dropped EXE 1 IoCs

pid	Process
1816	msisrv.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\msisrv = "C:\\msisrv.exe"	msisrv.exe

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

System Information Discovery
T1082

Gathers network information 2 TTPs 5 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
2364	ipconfig.exe
2504	ipconfig.exe
3588	ipconfig.exe
3452	ipconfig.exe
3012	ipconfig.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3452 wrote to memory of 1816	3452	f7d9fdb5587a91c8ab0ac23209619391_JaffaCakes118.exe	86
PID 3452 wrote to memory of 1816	3452	f7d9fdb5587a91c8ab0ac23209619391_JaffaCakes118.exe	86
PID 3452 wrote to memory of 1816	3452	f7d9fdb5587a91c8ab0ac23209619391_JaffaCakes118.exe	86
PID 1816 wrote to memory of 2364	1816	msisrv.exe	91
PID 1816 wrote to memory of 2364	1816	msisrv.exe	91
PID 1816 wrote to memory of 2364	1816	msisrv.exe	91
PID 1816 wrote to memory of 2504	1816	msisrv.exe	97
PID 1816 wrote to memory of 2504	1816	msisrv.exe	97
PID 1816 wrote to memory of 2504	1816	msisrv.exe	97
PID 1816 wrote to memory of 3588	1816	msisrv.exe	101
PID 1816 wrote to memory of 3588	1816	msisrv.exe	101
PID 1816 wrote to memory of 3588	1816	msisrv.exe	101
PID 1816 wrote to memory of 3452	1816	msisrv.exe	103
PID 1816 wrote to memory of 3452	1816	msisrv.exe	103
PID 1816 wrote to memory of 3452	1816	msisrv.exe	103
PID 1816 wrote to memory of 3012	1816	msisrv.exe	105
PID 1816 wrote to memory of 3012	1816	msisrv.exe	105
PID 1816 wrote to memory of 3012	1816	msisrv.exe	105

C:\Users\Admin\AppData\Local\Temp\f7d9fdb5587a91c8ab0ac23209619391_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f7d9fdb5587a91c8ab0ac23209619391_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3452
- C:\msisrv.exe
  "C:\msisrv.exe" C:\Users\Admin\AppData\Local\Temp\F7D9FD~1.EXE
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:1816
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /flushdns
    3⤵
    - Gathers network information
    PID:2364
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /flushdns
    3⤵
    - Gathers network information
    PID:2504
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /flushdns
    3⤵
    - Gathers network information
    PID:3588
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /flushdns
    3⤵
    - Gathers network information
    PID:3452
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /flushdns
    3⤵
    - Gathers network information
    PID:3012

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\msisrv.exe

Filesize
20KB

MD5
f7d9fdb5587a91c8ab0ac23209619391

SHA1
6657cacd38d47e8a6945fe7cb4757f4eb5a7c978

SHA256
b89c231f6dcf0b73adf3111ac77a41dd604b4c59fe2fc5ac4eb61f26bc23c443

SHA512
0a7c2687d67255194ffd22c833a86b93d0157b75b3955d3cda9140841ec3a79eba8fd2399dc23a96def8e1b8e9a9393912b9f6569b30bf9b439e1d955a17135d

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads