241c324b86783945423e169d055bcee0db34697a4f559cd5ded11bc19199ccb6

Analysis

max time kernel
135s
max time network
164s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
17-04-2024 14:59

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General

Target

f60a1ffc51168749a91b710f145e73bd_JaffaCakes118.exe
Size

13KB
MD5

f60a1ffc51168749a91b710f145e73bd
SHA1

55dda14fecf7be873c182e16e9716227c963a189
SHA256

241c324b86783945423e169d055bcee0db34697a4f559cd5ded11bc19199ccb6
SHA512

23ec773077d6eec5fdbe7b34639ca1f0a2ec1bddd518e1e0761d7665c6e17629561becd1dfff9ad3a0089121c3b4f7e91fac5269872c8e3c7972a1f5ea89b0ef
SSDEEP

384:JPIXVNZdwN7RmXuc9HqZdL7rMoqLRR9xPE:6XVNpecxqZ97rMoMk

Score

10^/10

persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 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\ShellServiceObjectDelayLoad\gyhjklpw.dll = "{21BE5FDF-D4CB-4850-AD99-21E68B50BF3F}"	f60a1ffc51168749a91b710f145e73bd_JaffaCakes118.exe

Loads dropped DLL 1 IoCs

pid	Process
1876	f60a1ffc51168749a91b710f145e73bd_JaffaCakes118.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\gyhjklpw.tmp	f60a1ffc51168749a91b710f145e73bd_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\gyhjklpw.nls	f60a1ffc51168749a91b710f145e73bd_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\gyhjklpw.tmp	f60a1ffc51168749a91b710f145e73bd_JaffaCakes118.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{21BE5FDF-D4CB-4850-AD99-21E68B50BF3F}	f60a1ffc51168749a91b710f145e73bd_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{21BE5FDF-D4CB-4850-AD99-21E68B50BF3F}\InProcServer32	f60a1ffc51168749a91b710f145e73bd_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{21BE5FDF-D4CB-4850-AD99-21E68B50BF3F}\InProcServer32\ = "C:\\Windows\\SysWow64\\gyhjklpw.dll"	f60a1ffc51168749a91b710f145e73bd_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{21BE5FDF-D4CB-4850-AD99-21E68B50BF3F}\InProcServer32\ThreadingModel = "Apartment"	f60a1ffc51168749a91b710f145e73bd_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1876	f60a1ffc51168749a91b710f145e73bd_JaffaCakes118.exe
1876	f60a1ffc51168749a91b710f145e73bd_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1876	f60a1ffc51168749a91b710f145e73bd_JaffaCakes118.exe
1876	f60a1ffc51168749a91b710f145e73bd_JaffaCakes118.exe
1876	f60a1ffc51168749a91b710f145e73bd_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1876 wrote to memory of 2544	1876	f60a1ffc51168749a91b710f145e73bd_JaffaCakes118.exe	95
PID 1876 wrote to memory of 2544	1876	f60a1ffc51168749a91b710f145e73bd_JaffaCakes118.exe	95
PID 1876 wrote to memory of 2544	1876	f60a1ffc51168749a91b710f145e73bd_JaffaCakes118.exe	95

C:\Users\Admin\AppData\Local\Temp\f60a1ffc51168749a91b710f145e73bd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f60a1ffc51168749a91b710f145e73bd_JaffaCakes118.exe"
1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1876
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\C687.tmp.bat
  2⤵
  PID:2544

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=4160 --field-trial-handle=3084,i,4016110471176367543,14287608422419064331,262144 --variations-seed-version /prefetch:8
1⤵
PID:2368

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:\Users\Admin\AppData\Local\Temp\C687.tmp.bat

Filesize
207B

MD5
e9e30d99dddeef45c006955efa80a97e

SHA1
d0188fbea582fccbc308e27356da3c7fb17f3615

SHA256
4ada7821f4ffa3995c1a9d432068878ba9168adce93b7a579dbc87468fa622ea

SHA512
87eef39d53a7d559aa561353b3ac5ae6ecb9d4c00b46d8f997949d68b491f1f213551efbbe80136184a384cf159bf96771a7915211bf05c2792b2d8744b93d0a

Download Submit
C:\Windows\SysWOW64\gyhjklpw.tmp

Filesize
2.3MB

MD5
6a09f16b5b1690be12815818537112cf

SHA1
74b4adb198fef127dfdadc73276d845313f01d8c

SHA256
db97fe904d4d92f830ba25edbef04226ac736c928bb87a7d9c74668ebe623820

SHA512
cf92f9a8bbc5e07b757275354b12084c98b44b8574c02323de1c93d6a3288aa90ebd482a34b6fbb217ba011f4430b23b346250de4553045c1cdbad64bea18698

Download Submit
memory/1876-13-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download
memory/1876-18-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download