abdae8e95d44e3828206426eda6bb72f735ec6d9e3c0b81ea7814a718aa0b4c8

Analysis

max time kernel
141s
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
11/05/2024, 05:21

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General

Target

2024-05-11_f939cb2bb51c11811468670c7b20a4ab_cryptolocker.exe
Size

34KB
MD5

f939cb2bb51c11811468670c7b20a4ab
SHA1

b469ccb8a63e8fa66456ed8537603ec1655f30eb
SHA256

abdae8e95d44e3828206426eda6bb72f735ec6d9e3c0b81ea7814a718aa0b4c8
SHA512

adccea3cf70354da8cc8c88e895b4e7f6a0f455335ea98790c9c9ecfb4e64fc2bcdc7a792122c8442415807fdb5859e0ad34a308f28111770eeb35e9280b5cd7
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5Pp7f:bxNrC7kYo1Fxf2rY1L

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002323e-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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	2024-05-11_f939cb2bb51c11811468670c7b20a4ab_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
4828	pissa.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 2420 wrote to memory of 4828	2420	2024-05-11_f939cb2bb51c11811468670c7b20a4ab_cryptolocker.exe	92
PID 2420 wrote to memory of 4828	2420	2024-05-11_f939cb2bb51c11811468670c7b20a4ab_cryptolocker.exe	92
PID 2420 wrote to memory of 4828	2420	2024-05-11_f939cb2bb51c11811468670c7b20a4ab_cryptolocker.exe	92

C:\Users\Admin\AppData\Local\Temp\2024-05-11_f939cb2bb51c11811468670c7b20a4ab_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-11_f939cb2bb51c11811468670c7b20a4ab_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4828

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=1028 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:8
1⤵
PID:4928

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\pissa.exe

Filesize
34KB

MD5
cc183024738909d7e3d07e2391b56d8c

SHA1
d0170df892e1b9334f6d0444b4875cbd9b53bdba

SHA256
d953d3de39cf04aa65df765ae24702eba917229ddead2b747d9c2011b4fc6d98

SHA512
562c8c490bc194bb7d3ff44c3e8d5751a17de1bdd7e7e5893f649e1b9e161363a80533cb2851ddf2c663a2a2a7de2888ccffa2dad3c8fcb55ffdc100d6678cc1

Download Submit
C:\Users\Admin\AppData\Local\Temp\pissec.exe

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/2420-0-0x00000000022D0000-0x00000000022D6000-memory.dmp

Filesize
24KB

Download
memory/2420-1-0x00000000022D0000-0x00000000022D6000-memory.dmp

Filesize
24KB

Download
memory/2420-2-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/4828-17-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/4828-23-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download