metasploit | de0df51c6a65c8ae868963322048540d50c101d0e2d1845ed060a8d9d3e187d8

Analysis

max time kernel
125s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
02-07-2024 14:28

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General

Target

1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe
Size

66KB
MD5

1fa36c94386d84c798ba238f89190429
SHA1

221e1fb1987c68969729b6b19e96abdc066865e7
SHA256

de0df51c6a65c8ae868963322048540d50c101d0e2d1845ed060a8d9d3e187d8
SHA512

c6c638e3c598d85b64a37e4072239d938d9dcb8853bc351604edc39e0f90abbfa9f96c3f106c7d1b5f39c9911371db1726549cde8d11bcadef4cd0b52be0ee4b
SSDEEP

1536:9jEky1ITCyI+ymv4/5CVmMa5zLTTyHvxxzJfnNXTG:NEnITCyTdAxCjtHvjzJfBq

Score

10^/10

metasploit backdoor persistence trojan

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Signatures

MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
trojan backdoor metasploit
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

Processes:

1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation 1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe
Executes dropped EXE 1 IoCs

Processes:

asr_zarfs.exe

pid process

2552 asr_zarfs.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe

pid	process
2552	asr_zarfs.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Activation Service = "asr_zarfs.exe"	1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Activation Service = "asr_zarfs.exe"	1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunServices\Windows Activation Service = "asr_zarfs.exe"	1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe

Drops file in System32 directory 2 IoCs

Processes:

1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\asr_zarfs.exe	1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\asr_zarfs.exe	1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

1fa36c94386d84c798ba238f89190429_JaffaCakes118.exeasr_zarfs.exe

description	pid	process
Token: 33	4532	1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4532	1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4532	1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe
Token: 33	2552	asr_zarfs.exe
Token: SeIncBasePriorityPrivilege	2552	asr_zarfs.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe

description	pid	process	target process
PID 4532 wrote to memory of 2552	4532	1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe	asr_zarfs.exe
PID 4532 wrote to memory of 2552	4532	1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe	asr_zarfs.exe
PID 4532 wrote to memory of 2552	4532	1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe	asr_zarfs.exe
PID 4532 wrote to memory of 4572	4532	1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe	cmd.exe
PID 4532 wrote to memory of 4572	4532	1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe	cmd.exe
PID 4532 wrote to memory of 4572	4532	1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1fa36c94386d84c798ba238f89190429_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4532

C:\Windows\SysWOW64\asr_zarfs.exe
C:\Windows\system32\asr_zarfs.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2552

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\1FA36C~1.EXE > nul
2⤵
PID:4572

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 --field-trial-handle=4212,i,6593821857742176458,13646536021844995125,262144 --variations-seed-version --mojo-platform-channel-handle=4016 /prefetch:8
1⤵
PID:1320

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads

C:\Windows\SysWOW64\asr_zarfs.exe
Filesize
66KB

MD5
1fa36c94386d84c798ba238f89190429

SHA1
221e1fb1987c68969729b6b19e96abdc066865e7

SHA256
de0df51c6a65c8ae868963322048540d50c101d0e2d1845ed060a8d9d3e187d8

SHA512
c6c638e3c598d85b64a37e4072239d938d9dcb8853bc351604edc39e0f90abbfa9f96c3f106c7d1b5f39c9911371db1726549cde8d11bcadef4cd0b52be0ee4b

Download Submit
memory/2552-9-0x0000000000490000-0x0000000000492000-memory.dmp

Filesize
8KB

Download
memory/2552-8-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2552-10-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4532-0-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4532-1-0x00000000004D0000-0x00000000004D2000-memory.dmp

Filesize
8KB

Download
memory/4532-11-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download