91bf98b82767f593acd082fca389ead01a26818d4dc3695469e175b6ff7c5645

Analysis

max time kernel
158s
max time network
165s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
12/03/2024, 14:51

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General

Target

2024-03-12_e03df4cc93cdc2c6fad79121c74dd025_cryptolocker.exe
Size

48KB
MD5

e03df4cc93cdc2c6fad79121c74dd025
SHA1

810d3134a0d44d392e71e947d8a609dbac179bfb
SHA256

91bf98b82767f593acd082fca389ead01a26818d4dc3695469e175b6ff7c5645
SHA512

4f63162e4bc4aabb038370923596fd38de5372abd90f8415b0a13e724e26eb7a0016d5302cc5911d2b8970f2116f5a763879b222620934497bbe2744e1dbcfd1
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprqQ15x8P:ZVxkGOtEvwDpjcr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000002271f-13.dat	CryptoLocker_rule2

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	2024-03-12_e03df4cc93cdc2c6fad79121c74dd025_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1240	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 1472 wrote to memory of 1240	1472	2024-03-12_e03df4cc93cdc2c6fad79121c74dd025_cryptolocker.exe	96
PID 1472 wrote to memory of 1240	1472	2024-03-12_e03df4cc93cdc2c6fad79121c74dd025_cryptolocker.exe	96
PID 1472 wrote to memory of 1240	1472	2024-03-12_e03df4cc93cdc2c6fad79121c74dd025_cryptolocker.exe	96

C:\Users\Admin\AppData\Local\Temp\2024-03-12_e03df4cc93cdc2c6fad79121c74dd025_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_e03df4cc93cdc2c6fad79121c74dd025_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1472
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1240

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=1408 --field-trial-handle=2276,i,5697607538120380977,9987005253899555344,262144 --variations-seed-version /prefetch:8
1⤵
PID:4796

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
48KB

MD5
19db49a1cb5afa8c0265036cb87412b3

SHA1
b79603b25c8000a2b5fdc0dd345686db218508a2

SHA256
a843bcbe218f32869f3f2a947951b56350d4dc3043a05fef7bf5fcd79074bfb7

SHA512
82ca4e427e5ef634d99a92bbbaf2729493c7acf534553727ecf0115763cdf693e22530208fcf55acdc2462b79aeaff385ae50d51fdb74561c405c50fdca705df

Download Submit
memory/1240-17-0x0000000002020000-0x0000000002023000-memory.dmp

Filesize
12KB

Download
memory/1240-19-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/1240-20-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/1472-0-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download
memory/1472-1-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/1472-2-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/1472-3-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/1472-26-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download