3ebbea1ee14af610362343f2432fdef3e5c36ec632663da5dfedd8aef1f2bc50

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06/03/2024, 00:33

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General

Target

2024-03-06_5cebd077b8f7c578fb1329a45e08a4fc_cryptolocker.exe
Size

48KB
MD5

5cebd077b8f7c578fb1329a45e08a4fc
SHA1

d0eb4f7387c2b6ca6ce7708f746e31782c64007f
SHA256

3ebbea1ee14af610362343f2432fdef3e5c36ec632663da5dfedd8aef1f2bc50
SHA512

988dd9ab038cc236c0764cc710dbcb9fd3fa20bbbe28cb7793f7a059613e0fff762202d104ee592737257776ebb338af1579c7e6c99559ad5299ba605c06825c
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3wwsr0B9P:X6QFElP6n+gJQMOtEvwDpjBDw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023200-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023200-12.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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	2024-03-06_5cebd077b8f7c578fb1329a45e08a4fc_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1576	asih.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 4288 wrote to memory of 1576	4288	2024-03-06_5cebd077b8f7c578fb1329a45e08a4fc_cryptolocker.exe	88
PID 4288 wrote to memory of 1576	4288	2024-03-06_5cebd077b8f7c578fb1329a45e08a4fc_cryptolocker.exe	88
PID 4288 wrote to memory of 1576	4288	2024-03-06_5cebd077b8f7c578fb1329a45e08a4fc_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-06_5cebd077b8f7c578fb1329a45e08a4fc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_5cebd077b8f7c578fb1329a45e08a4fc_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4288
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1576

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
48KB

MD5
ff3e10c1920809499052026d27b71972

SHA1
03d7e4a18f4aad6f0e17f0f26678d88ea6e66277

SHA256
bef8bd4eabe39bcc8fe6fd43cd2a9bcea70b32353ab6126b6109526eae510dbc

SHA512
9b01bd96946a122e31ecc28d8513c67a332e3818a21c4ccf660f67611f9ca5bbb81b5a1cf1d414971d55be0424d94b2a6522fabc5ac169401d6d2e1302fd4107

Download Submit
memory/1576-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/1576-19-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4288-0-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/4288-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/4288-2-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download