6afb7a2388d9c1b1c55f6e62446c0999e7529cfc2e09b04fb55e0bb591e19e7f

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
22/05/2024, 19:31

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General

Target

202405222861095e3a9deecd5d1e5d034a957a24cryptolocker.exe
Size

40KB
MD5

2861095e3a9deecd5d1e5d034a957a24
SHA1

93a90a26331f27c2fcd0574645d8d5ac60981267
SHA256

6afb7a2388d9c1b1c55f6e62446c0999e7529cfc2e09b04fb55e0bb591e19e7f
SHA512

1518545e556087555f80d959860a4fe412fb2550afda67e2ebdf8de3844460c26df6c5f9c92b44372360ddf8a2e839b7a96cffff01d81f6eb19f64ca430e61ea
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYoq:qDdFJy3QMOtEvwDpjjWMl7Tlq

Score

7^/10

upx

Malware Config

Signatures

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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	202405222861095e3a9deecd5d1e5d034a957a24cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1864	asih.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/464-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000900000002351a-13.dat	upx
behavioral2/memory/464-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/1864-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/1864-27-0x0000000000500000-0x0000000000510000-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 464 wrote to memory of 1864	464	202405222861095e3a9deecd5d1e5d034a957a24cryptolocker.exe	90
PID 464 wrote to memory of 1864	464	202405222861095e3a9deecd5d1e5d034a957a24cryptolocker.exe	90
PID 464 wrote to memory of 1864	464	202405222861095e3a9deecd5d1e5d034a957a24cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\202405222861095e3a9deecd5d1e5d034a957a24cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\202405222861095e3a9deecd5d1e5d034a957a24cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:464
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1864

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=4196,i,1999448010053300448,1112699187621658374,262144 --variations-seed-version --mojo-platform-channel-handle=3804 /prefetch:8
1⤵
PID:1008

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
40KB

MD5
897e7dd3db4b411593e1b373edcf192e

SHA1
e21726f08b8613010d93b214f1538a61e6a8a32d

SHA256
2245df00585422f1324957cc8f624556d2cfe798582989efd283edfc4572eaa5

SHA512
a4c8d6a49c094cd045e0a31a785445fa39d778d85a9deb725cb3e252ba5905d8805c67293fec158ba82bd2bc50b5be1552fd230285697c8d029f88f5510ff537

Download Submit
memory/464-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/464-1-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/464-2-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/464-9-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/464-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1864-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1864-20-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/1864-26-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/1864-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download