49697f5451c14ad1330a32d6043bdef4f520e2f8b5ab566f9e9bcd9d6b949967

Analysis

max time kernel
133s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
03/05/2024, 23:23

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General

Target

2024-05-03_1c63ce18b1e802f689cf8076918b94b0_cryptolocker.exe
Size

34KB
MD5

1c63ce18b1e802f689cf8076918b94b0
SHA1

2f2fb0a3305b70f92c961ad87033c8d91a27e952
SHA256

49697f5451c14ad1330a32d6043bdef4f520e2f8b5ab566f9e9bcd9d6b949967
SHA512

d80b93747312d125bee21064ac0fc3d76eb5f8e7da94184e4ae93968f1d577610cdea2cb13885d50fa229c77a9e645bf98189ad4c04ba541566f716aace88d6b
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5O0:bxNrC7kYo1Fxf2rYK0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000d000000023b90-12.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-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation	2024-05-03_1c63ce18b1e802f689cf8076918b94b0_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
3964	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 1108 wrote to memory of 3964	1108	2024-05-03_1c63ce18b1e802f689cf8076918b94b0_cryptolocker.exe	85
PID 1108 wrote to memory of 3964	1108	2024-05-03_1c63ce18b1e802f689cf8076918b94b0_cryptolocker.exe	85
PID 1108 wrote to memory of 3964	1108	2024-05-03_1c63ce18b1e802f689cf8076918b94b0_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-05-03_1c63ce18b1e802f689cf8076918b94b0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-03_1c63ce18b1e802f689cf8076918b94b0_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1108
- 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:3964

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
0490ccb76302853ca6732765349b7636

SHA1
e01ac389b9eae5fd1416480c60adf241985e868a

SHA256
df41a175cf6a7b2b5903978a30b57fcdc026434289c4ddf585837a051e60ba87

SHA512
7ccf5a15a23f144494b878db5d240775eaf53abdee6fe2e2a41097e77d246160469ffba5670e380546e5d615a45dda05a299d4cde0aaffb18b7cbc0205eaa815

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

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/1108-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/1108-1-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/1108-8-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/3964-23-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download