52b02a2558db793cd4fbbf614858899c18e7aa103d3750d786d8bbbaa5c84487

Resubmissions

17/02/2024, 13:27

240217-qp27lsfg88 7

17/02/2024, 13:22

240217-qmqqssfc6s 10

Analysis

max time kernel
90s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
17/02/2024, 13:22

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General

Target

2024-02-17_0776f0973edab7f367679e0e4763c01c_cryptolocker.exe
Size

36KB
MD5

0776f0973edab7f367679e0e4763c01c
SHA1

a9a61eebdc28193af7535fc141b74bb4242b9f3f
SHA256

52b02a2558db793cd4fbbf614858899c18e7aa103d3750d786d8bbbaa5c84487
SHA512

2d02670bd96272dbd52f7961867f03f2ff736e1768f56293cd9fd9334e5d18be3e74234a4d23a9d36de8c3adca98ccd9f546d30706c76049a3c771b9e852f8dc
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzoiM8Nekdvjl9V50i3Nbin:bAvJCYOOvbRPDEgXrNekd7l94i3pin

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000231fb-12.dat	CryptoLocker_rule2

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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	2024-02-17_0776f0973edab7f367679e0e4763c01c_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
3812	demka.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 3736 wrote to memory of 3812	3736	2024-02-17_0776f0973edab7f367679e0e4763c01c_cryptolocker.exe	86
PID 3736 wrote to memory of 3812	3736	2024-02-17_0776f0973edab7f367679e0e4763c01c_cryptolocker.exe	86
PID 3736 wrote to memory of 3812	3736	2024-02-17_0776f0973edab7f367679e0e4763c01c_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-17_0776f0973edab7f367679e0e4763c01c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_0776f0973edab7f367679e0e4763c01c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3736
- C:\Users\Admin\AppData\Local\Temp\demka.exe
  "C:\Users\Admin\AppData\Local\Temp\demka.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:3812

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\demka.exe

Filesize
36KB

MD5
1f5ace5c55faa846a935c28935832be4

SHA1
e867e8268ab298cffdc9832a90e933a0ca32523b

SHA256
322759ff2487ec489e5abb132f4d58867322308fe6e744763b0ab000791d6f22

SHA512
d25ef5e1c2a796000649354a181b25d67b7906e05e1974389219fafc87b10f1a6fcc9d1711c6e19254293bdc90d3aab5e44704c126fc58b440f9279e297979d2

Download Submit
memory/3736-0-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/3736-1-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/3736-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3812-20-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download