1e9f792b4754e082d796405f739b1bc0a9b164468b53fa0222e684304dcaad33

Analysis

max time kernel
143s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
13-03-2024 16:29

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General

Target

2024-03-13_272279a1ce521c657bbed1fe16575ab8_cryptolocker.exe
Size

63KB
MD5

272279a1ce521c657bbed1fe16575ab8
SHA1

e9cc0d991c24bc04f08af2fae5e977a81d478892
SHA256

1e9f792b4754e082d796405f739b1bc0a9b164468b53fa0222e684304dcaad33
SHA512

f5775474b9ba1c50ebd475081740a5ecdd7d89e302bb118c7b22a19a860a3bbc14f4e09b77b4c87409d82991814820c237af38670b43bc66c248dbcdc1dc00af
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4hdCY8EQMjpi/Wpi3B3URiLnuoUwUsfqB1e:vj+jsMQMOtEvwDpj5Hy7B3gG8xzUjqy

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023272-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023272-12.dat	CryptoLocker_set1

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	2024-03-13_272279a1ce521c657bbed1fe16575ab8_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3000	misid.exe

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 4180 wrote to memory of 3000	4180	2024-03-13_272279a1ce521c657bbed1fe16575ab8_cryptolocker.exe	100
PID 4180 wrote to memory of 3000	4180	2024-03-13_272279a1ce521c657bbed1fe16575ab8_cryptolocker.exe	100
PID 4180 wrote to memory of 3000	4180	2024-03-13_272279a1ce521c657bbed1fe16575ab8_cryptolocker.exe	100

C:\Users\Admin\AppData\Local\Temp\2024-03-13_272279a1ce521c657bbed1fe16575ab8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-13_272279a1ce521c657bbed1fe16575ab8_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4180
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3000

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=3756 --field-trial-handle=2248,i,10247514684337323751,15511974759131734137,262144 --variations-seed-version /prefetch:8
1⤵
PID:3540

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\misid.exe

Filesize
63KB

MD5
28a9e0bbdd4699e9a706418fcae20666

SHA1
eddf3bb4231f541729be3a352a0a6dc059132db5

SHA256
4968655511e22814df101550fe69828bf7012db122c3580314d6c24fdc3860f1

SHA512
51e4bf594d75c8e4780aeaa26ffe7b5628e19808025d82d108909ffd1720d5083d2f42312f925eb3c8730df00948fbc549b7b3f776a4fcdce77b4d3c5cfd5323

Download Submit
memory/3000-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3000-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4180-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4180-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4180-2-0x0000000000890000-0x0000000000896000-memory.dmp

Filesize
24KB

Download