693fb65875783e7c09f388a9f93d3af2895a4511bed086a0fa5fa868f7518990

Analysis

max time kernel
142s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
23/02/2024, 09:38

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General

Target

2024-02-23_53179e3e7f2396de87df4e977ae9ea0f_cryptolocker.exe
Size

96KB
MD5

53179e3e7f2396de87df4e977ae9ea0f
SHA1

43a5c21815e1764976e65d907086716263ea5c85
SHA256

693fb65875783e7c09f388a9f93d3af2895a4511bed086a0fa5fa868f7518990
SHA512

bff64db90bd1e30f206d9bce22b001a5a0d34443192af33125b11bec98a7923f15bcab956604010486091864463788f0c1b3ecfa67762f11ba4a71513616c18f
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJvfT35y:xj+VGMOtEvwDpjubwQEIiVmkfI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/2260-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x00060000000230f5-13.dat	CryptoLocker_rule2
behavioral2/memory/2260-19-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4080-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/2260-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x00060000000230f5-13.dat	CryptoLocker_set1
behavioral2/memory/2260-19-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4080-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral2/memory/2260-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x00060000000230f5-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2260-19-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4080-26-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

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-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation	2024-02-23_53179e3e7f2396de87df4e977ae9ea0f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4080	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 2260 wrote to memory of 4080	2260	2024-02-23_53179e3e7f2396de87df4e977ae9ea0f_cryptolocker.exe	85
PID 2260 wrote to memory of 4080	2260	2024-02-23_53179e3e7f2396de87df4e977ae9ea0f_cryptolocker.exe	85
PID 2260 wrote to memory of 4080	2260	2024-02-23_53179e3e7f2396de87df4e977ae9ea0f_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-23_53179e3e7f2396de87df4e977ae9ea0f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_53179e3e7f2396de87df4e977ae9ea0f_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2260
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4080

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
96KB

MD5
2acc0c8896edd56c754cbec9d5ebcc28

SHA1
ed17268d622d1139a4ba9e294af67ac57e35fedd

SHA256
ac2216ae6ea74c0c72e871c4e584d01cb7c16a35ab730de56185ab06d5275338

SHA512
e58adf78e6f09cf12489c3349b4def16be41c94a3a8b67f460daf12cebb16ea471c149c2f119d54cf8a118984e002e22384748a84d744603c288be202a55f773

Download Submit
memory/2260-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2260-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2260-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2260-3-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/2260-19-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4080-20-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4080-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4080-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download