f750077a66393b70c4fa1fff0af2ad1a068163419509e853a5d6b6737bd875e1

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
27/01/2024, 21:32

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General

Target

2024-01-27_750fde1701632f87fd57bb9923bb65e8_cryptolocker.exe
Size

81KB
MD5

750fde1701632f87fd57bb9923bb65e8
SHA1

dd5274a1a4ca0a126cfd5705ef94a55feb3f1760
SHA256

f750077a66393b70c4fa1fff0af2ad1a068163419509e853a5d6b6737bd875e1
SHA512

49c975d513793d2796ec8e74c7041315fc65f8c2142bcf2cf0b9ac7bceabafacd3ba0feae59787c47b251d3dc1e9534b055446f0d103a6b91742bf28fb02adae
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPtNw5CS95yFPnc:V6QFElP6n+gMQMOtEvwDpjyaLccVNlm

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023204-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023204-12.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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-01-27_750fde1701632f87fd57bb9923bb65e8_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2068	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 3316 wrote to memory of 2068	3316	2024-01-27_750fde1701632f87fd57bb9923bb65e8_cryptolocker.exe	89
PID 3316 wrote to memory of 2068	3316	2024-01-27_750fde1701632f87fd57bb9923bb65e8_cryptolocker.exe	89
PID 3316 wrote to memory of 2068	3316	2024-01-27_750fde1701632f87fd57bb9923bb65e8_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-01-27_750fde1701632f87fd57bb9923bb65e8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_750fde1701632f87fd57bb9923bb65e8_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3316
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2068

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
82KB

MD5
f00dc270bca7088ee0f5ad276a7e299b

SHA1
6ff5972d259cdf37bdc25e3efc243f36129f6181

SHA256
22620e6aa53f21fbb0d9d2fa2156a37bdab846b2ef0076795397d0143a958702

SHA512
1c5e6a9d511d7f99f29799f4abd23a81e567af395c9e1dbbc308b8df404adf6184c51d169e970fb9ec317a93785bacbd9eae3de0fc590bfe9e9c80519248b0c6

Download Submit
memory/2068-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2068-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3316-0-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/3316-1-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/3316-2-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download