24db362778593be5aeb897063fbfdf4208008dc3b7deaf2a7f72cd0711e64742

Analysis

max time kernel
145s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
01-06-2024 19:30

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General

Target

24db362778593be5aeb897063fbfdf4208008dc3b7deaf2a7f72cd0711e64742.exe
Size

91KB
MD5

209832c30e10ec6825fd9892290ce9f3
SHA1

109a38fea231a2b76bcfe9d3ddba2a6fe3f408f0
SHA256

24db362778593be5aeb897063fbfdf4208008dc3b7deaf2a7f72cd0711e64742
SHA512

66b9af725783f7d0732e1ebfe4ed71803aa9284ddc8ffae971a18a3907669a4223be923269ea3a4c89cb4fa5fd70d1a4823b9f94831288a9f96b1e71346560e0
SSDEEP

1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAA/DF:n6a+1SEOtEvwDpjYYvQd2Py

Score

9^/10

upx

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/4820-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000800000002325a-13.dat	CryptoLocker_rule2
behavioral2/memory/4820-25-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4912-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/4820-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000800000002325a-13.dat	CryptoLocker_set1
behavioral2/memory/4820-25-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4912-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/4820-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral2/files/0x000800000002325a-13.dat	UPX
behavioral2/memory/4820-25-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral2/memory/4912-26-0x0000000000500000-0x0000000000510000-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	24db362778593be5aeb897063fbfdf4208008dc3b7deaf2a7f72cd0711e64742.exe

Executes dropped EXE 1 IoCs

pid	Process
4912	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4820-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000800000002325a-13.dat	upx
behavioral2/memory/4820-25-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4912-26-0x0000000000500000-0x0000000000510000-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 4820 wrote to memory of 4912	4820	24db362778593be5aeb897063fbfdf4208008dc3b7deaf2a7f72cd0711e64742.exe	92
PID 4820 wrote to memory of 4912	4820	24db362778593be5aeb897063fbfdf4208008dc3b7deaf2a7f72cd0711e64742.exe	92
PID 4820 wrote to memory of 4912	4820	24db362778593be5aeb897063fbfdf4208008dc3b7deaf2a7f72cd0711e64742.exe	92

C:\Users\Admin\AppData\Local\Temp\24db362778593be5aeb897063fbfdf4208008dc3b7deaf2a7f72cd0711e64742.exe
"C:\Users\Admin\AppData\Local\Temp\24db362778593be5aeb897063fbfdf4208008dc3b7deaf2a7f72cd0711e64742.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4820
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4912

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=4060 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:8
1⤵
PID:4724

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\asih.exe

Filesize
91KB

MD5
3d63081d083554afd47b3b2431abafb5

SHA1
2b4a98b7048d8968ea7a619ccb63c968ee4ea4b8

SHA256
4073c8e24352cf721ae49681048f474d61fa263ca400d5719f00b6c1a4c07ffd

SHA512
8424d5a5b24f6810f9d1a9b0d39f8cad8873e7dd7d466789fac080278195573d91596ebc94ef925b8f1d408cbc1b8e8680695bd1244136c786af89c707c02fb3

Download Submit
memory/4820-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4820-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4820-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4820-3-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/4820-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4912-18-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/4912-19-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/4912-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download