589e2935db35303d02a2c628b1c9c0d5257feae311682625ba2de42892b7be0b

Analysis

max time kernel
149s
max time network
154s
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, 20:16

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General

Target

2024-02-23_ff8d2511f4824bcfdf3cf97993ae371b_cryptolocker.exe
Size

38KB
MD5

ff8d2511f4824bcfdf3cf97993ae371b
SHA1

afc121644d3e7f648c49633605de22622a29cab3
SHA256

589e2935db35303d02a2c628b1c9c0d5257feae311682625ba2de42892b7be0b
SHA512

df1fe72b1d73ff82aaed9fbd041ecd9c05d1df7e47876c114a3638874a8b7dbece9d336121d04afc8b63af0f2c1e78a473db93a9296c449a4f3192e8cbefa8eb
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5axe:V6QFElP6n+gMQMOtEvwDpjyaYaE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e5ae-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e5ae-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-1-5-21-1414748551-1520717498-2956787782-1000\Control Panel\International\Geo\Nation	2024-02-23_ff8d2511f4824bcfdf3cf97993ae371b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2072	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 5084 wrote to memory of 2072	5084	2024-02-23_ff8d2511f4824bcfdf3cf97993ae371b_cryptolocker.exe	90
PID 5084 wrote to memory of 2072	5084	2024-02-23_ff8d2511f4824bcfdf3cf97993ae371b_cryptolocker.exe	90
PID 5084 wrote to memory of 2072	5084	2024-02-23_ff8d2511f4824bcfdf3cf97993ae371b_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-02-23_ff8d2511f4824bcfdf3cf97993ae371b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_ff8d2511f4824bcfdf3cf97993ae371b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5084
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2072

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
38KB

MD5
19a3b830f5f741bcce1fcf926a9e84d9

SHA1
b8ac8412f475169deb7a0082345b2828f9c89bd0

SHA256
986e001520aa6b59cc86158679ddff5c4a184e4fbb4868000aa6bd7714367ffd

SHA512
17d1188d0ee707724764b77d46b0c970c9c5925d38228bbbc7a4bc4b5a4582ba429aa725c0917afd74ca05468e576969c44ea24d8656aec46f595ad13d538699

Download Submit
memory/2072-17-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/2072-22-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/5084-0-0x0000000002320000-0x0000000002326000-memory.dmp

Filesize
24KB

Download
memory/5084-1-0x0000000002320000-0x0000000002326000-memory.dmp

Filesize
24KB

Download
memory/5084-2-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download