3a268674039dd5ce8b0251215416c530f183afe30f1aff496b6b13b867b2d867

Analysis

max time kernel
141s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
19/05/2024, 20:36

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General

Target

3a268674039dd5ce8b0251215416c530f183afe30f1aff496b6b13b867b2d867.exe
Size

56KB
MD5

6f8c79242fbae0b9f4fb54d0456d7400
SHA1

391fe98e28caf330d911319117e6045ace5cf7e5
SHA256

3a268674039dd5ce8b0251215416c530f183afe30f1aff496b6b13b867b2d867
SHA512

31779dc10b739fa5d9bed5cdebe9e6ff36b6e9e5509fc323e502c57271f6bb01a0b1d0ae894c99299dcd9177396fea47fa876dcdf4354c99b636b015f0d1cc5d
SSDEEP

768:r8eRH+MlFh0pDpuJ84WEi+U6sh7iQroCHmyf+RjFBSuB2XpfsZzK:r9l+W8xFt6sh7iQroCoRB0u0sZ2

Score

9^/10

upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/1348-0-0x0000000000400000-0x000000000040F000-memory.dmp	UPX
behavioral2/memory/1348-4-0x0000000000400000-0x000000000040F000-memory.dmp	UPX
behavioral2/files/0x0008000000023288-8.dat	UPX
behavioral2/memory/3420-20-0x0000000000400000-0x000000000040F000-memory.dmp	UPX

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	3a268674039dd5ce8b0251215416c530f183afe30f1aff496b6b13b867b2d867.exe

Executes dropped EXE 1 IoCs

pid	Process
3420	bkgrnd.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1348-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/1348-4-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/files/0x0008000000023288-8.dat	upx
behavioral2/memory/3420-20-0x0000000000400000-0x000000000040F000-memory.dmp	upx

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1348 wrote to memory of 3420	1348	3a268674039dd5ce8b0251215416c530f183afe30f1aff496b6b13b867b2d867.exe	93
PID 1348 wrote to memory of 3420	1348	3a268674039dd5ce8b0251215416c530f183afe30f1aff496b6b13b867b2d867.exe	93
PID 1348 wrote to memory of 3420	1348	3a268674039dd5ce8b0251215416c530f183afe30f1aff496b6b13b867b2d867.exe	93

C:\Users\Admin\AppData\Local\Temp\3a268674039dd5ce8b0251215416c530f183afe30f1aff496b6b13b867b2d867.exe
"C:\Users\Admin\AppData\Local\Temp\3a268674039dd5ce8b0251215416c530f183afe30f1aff496b6b13b867b2d867.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1348
- C:\Users\Admin\AppData\Local\Temp\bkgrnd.exe
  "C:\Users\Admin\AppData\Local\Temp\bkgrnd.exe"
  2⤵
  - Executes dropped EXE
  PID:3420

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=5240 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:8
1⤵
PID:3972

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\bkgrnd.exe

Filesize
56KB

MD5
d829042b82039287b024f03cf0142766

SHA1
a85370860706de675ba8fbad3a917bc8bc66c982

SHA256
bfd73a014b3573e8a13a2a49ec49c93f5098fb7c52b7dbd72fe675f1e64cdabb

SHA512
45b94f3a2a66a0fab6c8c9ff44dc7a5ea1c829017c672685f3beac4d476150c2ec54a52e898a5f8a111c575b0f80469f2d2aa6474111123aaa7acb7e348a3376

Download Submit
memory/1348-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1348-1-0x0000000004000000-0x0000000004006000-memory.dmp

Filesize
24KB

Download
memory/1348-2-0x0000000004000000-0x0000000004006000-memory.dmp

Filesize
24KB

Download
memory/1348-4-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3420-20-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download