f2a6462adbd1244c8221d6482ea5c9b3dad027f6ef5fec8572e4244e2860e7c3

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
08/03/2024, 20:22

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General

Target

2024-03-08_34d3f36209459978394f8b22989cc292_cryptolocker.exe
Size

126KB
MD5

34d3f36209459978394f8b22989cc292
SHA1

bdc0d5680865c237a79f7bc01dc9f0d2fbe6c36c
SHA256

f2a6462adbd1244c8221d6482ea5c9b3dad027f6ef5fec8572e4244e2860e7c3
SHA512

a8295bcc8915982f40668315adc05e58c8c746d690c881ff0fe64cf630010d8a4861570656d45eb269e980b40e2b62f15194614e2347b1d6d1d6af864d4b2f31
SSDEEP

1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxGBpN:vCA9OtEvwDpjx

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e980-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e980-12.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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	2024-03-08_34d3f36209459978394f8b22989cc292_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2528	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 2564 wrote to memory of 2528	2564	2024-03-08_34d3f36209459978394f8b22989cc292_cryptolocker.exe	88
PID 2564 wrote to memory of 2528	2564	2024-03-08_34d3f36209459978394f8b22989cc292_cryptolocker.exe	88
PID 2564 wrote to memory of 2528	2564	2024-03-08_34d3f36209459978394f8b22989cc292_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-08_34d3f36209459978394f8b22989cc292_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_34d3f36209459978394f8b22989cc292_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2564
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2528

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
126KB

MD5
d619346d4dcd635483fc9601c98035ad

SHA1
a1b21711885526dbd382c928e652e4f087c6e988

SHA256
9c1f7448ee64bbc2b2e3474a48734970622c5fc03f9ffff172da022204ade401

SHA512
a553b0b5b89b54d66966637af872202e04b250004cf092b52d4aa082d1cb8259cf93d4eff04d3250c220662e6c188b54c5d88921c6dc93ace1d2cbfe64b9ce0a

Download Submit
memory/2528-17-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/2528-18-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/2564-0-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/2564-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/2564-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download