2b668eb82af01cf460d19bec4f12f01d1bbd8ed1ac5250944ce860ca4e874bc1

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
08/06/2024, 20:46

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2b668eb82af01cf460d19bec4f12f01d1bbd8ed1ac5250944ce860ca4e874bc1.exe
Size

66KB
MD5

0340233920cee246c2b957caf2cac04b
SHA1

d0ab9b6f03a195661eb571bdfbd8596266659f12
SHA256

2b668eb82af01cf460d19bec4f12f01d1bbd8ed1ac5250944ce860ca4e874bc1
SHA512

2bb4deed32a5bc748a37d4ac6bc373ee158ea2dd08fdec2bdb97c566cf8f85e3aa230b2191707580e38b6c931ad630824d5521bbfb229a1c65cbe033a38bcfcd
SSDEEP

768:ZrItKyw5WHXfQIhIiIk9ecAaVPD96KyX6N:Zr3Z5IfQIR81ad5yX6N

Score

9^/10

evasion

Malware Config

Signatures

Detects Windows executables referencing non-Windows User-Agents 4 IoCs

resource	yara_rule
behavioral2/memory/4400-0-0x0000000000400000-0x0000000000411000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/files/0x000b000000023227-3.dat	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/4400-5-0x0000000000400000-0x0000000000411000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/3124-6-0x0000000000400000-0x0000000000411000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

Sets file to hidden 1 TTPs 1 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
836	attrib.exe

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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2b668eb82af01cf460d19bec4f12f01d1bbd8ed1ac5250944ce860ca4e874bc1.exe

Executes dropped EXE 1 IoCs

pid	Process
3124	guehost.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Debug\guehost.exe	2b668eb82af01cf460d19bec4f12f01d1bbd8ed1ac5250944ce860ca4e874bc1.exe
File opened for modification	C:\Windows\Debug\guehost.exe	2b668eb82af01cf460d19bec4f12f01d1bbd8ed1ac5250944ce860ca4e874bc1.exe
File opened for modification	C:\Windows\Debug\guehost.exe	attrib.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4400	2b668eb82af01cf460d19bec4f12f01d1bbd8ed1ac5250944ce860ca4e874bc1.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4400 wrote to memory of 836	4400	2b668eb82af01cf460d19bec4f12f01d1bbd8ed1ac5250944ce860ca4e874bc1.exe	91
PID 4400 wrote to memory of 836	4400	2b668eb82af01cf460d19bec4f12f01d1bbd8ed1ac5250944ce860ca4e874bc1.exe	91
PID 4400 wrote to memory of 836	4400	2b668eb82af01cf460d19bec4f12f01d1bbd8ed1ac5250944ce860ca4e874bc1.exe	91
PID 4400 wrote to memory of 4316	4400	2b668eb82af01cf460d19bec4f12f01d1bbd8ed1ac5250944ce860ca4e874bc1.exe	94
PID 4400 wrote to memory of 4316	4400	2b668eb82af01cf460d19bec4f12f01d1bbd8ed1ac5250944ce860ca4e874bc1.exe	94
PID 4400 wrote to memory of 4316	4400	2b668eb82af01cf460d19bec4f12f01d1bbd8ed1ac5250944ce860ca4e874bc1.exe	94

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
836	attrib.exe

C:\Users\Admin\AppData\Local\Temp\2b668eb82af01cf460d19bec4f12f01d1bbd8ed1ac5250944ce860ca4e874bc1.exe
"C:\Users\Admin\AppData\Local\Temp\2b668eb82af01cf460d19bec4f12f01d1bbd8ed1ac5250944ce860ca4e874bc1.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4400
- C:\Windows\SysWOW64\attrib.exe
  attrib +a +s +h +r C:\Windows\Debug\guehost.exe
  2⤵
  - Sets file to hidden
  - Drops file in Windows directory
  - Views/modifies file attributes
  PID:836
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\2B668E~1.EXE > nul
  2⤵
  PID:4316

C:\Windows\Debug\guehost.exe
C:\Windows\Debug\guehost.exe
1⤵
- Executes dropped EXE
PID:3124

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=4352 --field-trial-handle=2256,i,6670388345726423024,18382795228658886258,262144 --variations-seed-version /prefetch:8
1⤵
PID:1980

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\Debug\guehost.exe

Filesize
66KB

MD5
c170a654038e0ab141888bd31b101bc8

SHA1
58c431fdf4f9d9e7ff093d5e68feb92bbbce2f2f

SHA256
19e63f073a6c105f43ef04ec91335d25310ebef2ca857ddbaa9f2b5d32933ef4

SHA512
ae9ae25c765a188c985000cf0cb99125af3b1bd3e71e0e8d889abf2f03da70711831c434dc73be9e143ae63073367f77b4808b11384477a9a2548d0cd9684765

Download Submit
memory/3124-6-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/4400-0-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/4400-5-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads