37763aaffc9e1b7ca07f809f7725e2cebce7f5a6a84ec246eb8749cc319fc89d

Analysis

max time kernel
134s
max time network
132s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
02/06/2024, 03:28

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General

Target

2024-06-02_2ada173185a53d2ce35963b2ce6a9764_cryptolocker.exe
Size

62KB
MD5

2ada173185a53d2ce35963b2ce6a9764
SHA1

84579f63d00c72ed606dea33c28dabac930422ef
SHA256

37763aaffc9e1b7ca07f809f7725e2cebce7f5a6a84ec246eb8749cc319fc89d
SHA512

299aadb64b536ec63d72820546263103339b3ac2ab6078d9a6e9ac7aaa0fa9292e47879ff7a8471b3ba7903d2219515e54b61cab7456daa2c55012be22e6b684
SSDEEP

768:3Uz7yVEhs9+Hs1SQtOOtEvwDpjO9+4hdCY8EQMjpi/Wpi3B3URiLqCyLuAx8XG9x:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxWTk

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/2528-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0009000000023532-13.dat	CryptoLocker_rule2
behavioral2/memory/2528-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/2920-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/2920-49-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/2528-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x0009000000023532-13.dat	CryptoLocker_set1
behavioral2/memory/2528-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/2920-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/2920-49-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	misid.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	2024-06-02_2ada173185a53d2ce35963b2ce6a9764_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2920	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 2528 wrote to memory of 2920	2528	2024-06-02_2ada173185a53d2ce35963b2ce6a9764_cryptolocker.exe	91
PID 2528 wrote to memory of 2920	2528	2024-06-02_2ada173185a53d2ce35963b2ce6a9764_cryptolocker.exe	91
PID 2528 wrote to memory of 2920	2528	2024-06-02_2ada173185a53d2ce35963b2ce6a9764_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-06-02_2ada173185a53d2ce35963b2ce6a9764_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-02_2ada173185a53d2ce35963b2ce6a9764_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:2920

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3804,i,1809100026287847100,9768898026582633513,262144 --variations-seed-version --mojo-platform-channel-handle=4024 /prefetch:8
1⤵
PID:3448

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
62KB

MD5
f37b66b9e5e1a7067027ef1813193b36

SHA1
22096b0e6ae0f34062b948615cba8c142076e6a8

SHA256
f502309ee23d37e0740f7bcbefa3b3d35fc67dd81cbcd8153e11103a1b2be125

SHA512
57f789ed41cbfcd05e42eb1fdd3226f7e99e025b1358f2219e1d6f979b4a9e598f04d1955b82f8649bf108394261ea81c1b27def75a697333b3eac5dfb0aa45a

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

Filesize
315B

MD5
a34ac19f4afae63adc5d2f7bc970c07f

SHA1
a82190fc530c265aa40a045c21770d967f4767b8

SHA256
d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

SHA512
42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

Download Submit
memory/2528-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2528-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/2528-2-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/2528-3-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/2528-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2920-18-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2920-20-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/2920-26-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download
memory/2920-49-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download