eb001abbe9e6dc4ff283040ff7bc7a159414ac61fc8c6a317d1a1c406393a458

Analysis

max time kernel
143s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
16/04/2024, 07:47

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General

Target

f306379f4fbecb0029447846ad589aab_JaffaCakes118.exe
Size

51KB
MD5

f306379f4fbecb0029447846ad589aab
SHA1

a34a4c09de39754642006c38627b5e2d627beb7c
SHA256

eb001abbe9e6dc4ff283040ff7bc7a159414ac61fc8c6a317d1a1c406393a458
SHA512

6a6959b2291a2021e354fe257a6f7b3d304cb880867827b4571ad260c3b335b46216f79e635ec12cdb9b20793d6f69855481888852098f368918b57486fe4f8d
SSDEEP

768:fzcbRyDqDeFpZaQhXgJHZLrTq+HHetyP1+4xw/8lUBgEolxmOdrCCQFq5552e1W9:fzfeDeTZaQVErlHeAY5kygDzkkLcN

Score

8^/10

persistence

Malware Config

Signatures

Drops file in Drivers directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\drivers\nrrgda96.sys	f306379f4fbecb0029447846ad589aab_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\drivers\nrrgda96.sys	f306379f4fbecb0029447846ad589aab_JaffaCakes118.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\nrrgda96\ImagePath = "system32\\\\drivers\\\\nrrgda96.sys"	f306379f4fbecb0029447846ad589aab_JaffaCakes118.exe

Loads dropped DLL 1 IoCs

pid	Process
3560	rundll32.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\Rsskplm = "rundll32.exe C:\\Windows\\system32\\nrrgda96.dll,Start"	rundll32.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\nrrgda96.dllmmc.pkm	rundll32.exe
File created	C:\Windows\SysWOW64\nrrgda96.dll	f306379f4fbecb0029447846ad589aab_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\catclogd.dll	f306379f4fbecb0029447846ad589aab_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\nrrgda96.dll	f306379f4fbecb0029447846ad589aab_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\catclogd.dll	f306379f4fbecb0029447846ad589aab_JaffaCakes118.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\DVL	rundll32.exe
File opened for modification	\??\c:\windows\gkkzwtfcuwee.tj	rundll32.exe
File created	C:\Windows\fn00321.log	f306379f4fbecb0029447846ad589aab_JaffaCakes118.exe
File created	\??\c:\windows\mqqfcz.omg	f306379f4fbecb0029447846ad589aab_JaffaCakes118.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
656	Process not Found

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4964 wrote to memory of 3560	4964	f306379f4fbecb0029447846ad589aab_JaffaCakes118.exe	89
PID 4964 wrote to memory of 3560	4964	f306379f4fbecb0029447846ad589aab_JaffaCakes118.exe	89
PID 4964 wrote to memory of 3560	4964	f306379f4fbecb0029447846ad589aab_JaffaCakes118.exe	89

C:\Users\Admin\AppData\Local\Temp\f306379f4fbecb0029447846ad589aab_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f306379f4fbecb0029447846ad589aab_JaffaCakes118.exe"
1⤵
- Drops file in Drivers directory
- Sets service image path in registry
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4964
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 C:\Windows\system32\nrrgda96.dll Start
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - Drops file in Windows directory
  PID:3560

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4240 --field-trial-handle=2692,i,8678872182442199182,12502579059484928042,262144 --variations-seed-version /prefetch:8
1⤵
PID:1332

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\nrrgda96.dll

Filesize
15KB

MD5
92682fd6d6f82407d2823c78fe73d213

SHA1
2d46dc038beb5f62d6a8cc2f889e70103b98968b

SHA256
5089f8e3467392b2d31a519cfacac99c4d2f661372ef467986e23dd1d4b8aa37

SHA512
a61d10fd706f0f1947f616c4a4946768b6dda4acaeeb74f06cb252ebf61283632c0b0cbf02c89727fbb31e6ff0550ffde6f86ad614193f4b316ba8e131c5093c

Download Submit
\??\c:\windows\mqqfcz.omg

Filesize
3B

MD5
115f89503138416a242f40fb7d7f338e

SHA1
af06318c33c8e41c70083ee23dbe19426f1f9c5b

SHA256
56f4da26ed956730309fa1488611ee0f13b0ac95ebb1bc9b5d210e31ff70e79c

SHA512
3272ecce2e91dc1a531f530b36acd0bfeb3fa5e260e743a31f975e6b963db944f95a9260cba7d1dc87251a48f8f72807edb77f32271955b424ba7725281aacdf

Download Submit
memory/4964-24-0x0000000000400000-0x000000000040CD10-memory.dmp

Filesize
51KB

Download
memory/4964-26-0x0000000000400000-0x000000000040CD10-memory.dmp

Filesize
51KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads