f2e4c2323eda93772757d875145a380098232563677f8878ba1cf64c68532aad

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
23/04/2024, 03:46

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General

Target

2024-04-23_92151981f2416020c35fbbcbe372c7ef_cryptolocker.exe
Size

92KB
MD5

92151981f2416020c35fbbcbe372c7ef
SHA1

ce16268645ce5bfa08ed2d62a6093d6791e973a0
SHA256

f2e4c2323eda93772757d875145a380098232563677f8878ba1cf64c68532aad
SHA512

ce4d64ce2667948c30fde533522e03c4ee6f5f464877b0bd000e3fde20a5a31e3f78112bde094404bb6f987f76db2a20224e8c02b7d204f816559f937ef8d489
SSDEEP

1536:vj+jsMQMOtEvwDpj5H8u8rBN6nqEZNi1OkQNyrR:vCjsIOtEvwDpj5H8zPsg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0005000000023256-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0005000000023256-12.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-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation	2024-04-23_92151981f2416020c35fbbcbe372c7ef_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2572	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 4816 wrote to memory of 2572	4816	2024-04-23_92151981f2416020c35fbbcbe372c7ef_cryptolocker.exe	85
PID 4816 wrote to memory of 2572	4816	2024-04-23_92151981f2416020c35fbbcbe372c7ef_cryptolocker.exe	85
PID 4816 wrote to memory of 2572	4816	2024-04-23_92151981f2416020c35fbbcbe372c7ef_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-04-23_92151981f2416020c35fbbcbe372c7ef_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-23_92151981f2416020c35fbbcbe372c7ef_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4816
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2572

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
92KB

MD5
ee0a67dd47ec5b3ccdf1c5a1801e20ba

SHA1
191777a1e8faf07460ab9595cbfa1f8c29775c12

SHA256
5206eb79af39707d6bc8816211bd5aeae2b9d7bbab0c9d524f9e0321e9b3a74c

SHA512
252c5140e56de3d5299f8bbadeed103b9f29ff925e5d7b5a8702aa946f05f89640a9367af1ade5c0d8c6886e09e79dd62f49806cf53e7786b9aa243c5b6410f5

Download Submit
memory/2572-17-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/2572-19-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/4816-0-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/4816-1-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/4816-2-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download