3958ca44d5c3950604259628653e2376a29b5250cfc0cab9c51453f80c74fd73

Analysis

max time kernel
0s
max time network
120s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18-01-2024 22:41

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General

Target

2024-01-18_4288ae8a1edd0e80c462a22b58ca1f47_cryptolocker.exe
Size

33KB
MD5

4288ae8a1edd0e80c462a22b58ca1f47
SHA1

f6084d9dc7a755c0ebae8b97396cc8164fcb5b60
SHA256

3958ca44d5c3950604259628653e2376a29b5250cfc0cab9c51453f80c74fd73
SHA512

86cf8841519e0bd29dd0ee9f1198d8fc11505bf9a7aa9763213e965900f44d6c8ce70ff9c4311206a19f16088f81058702a9efa39f09465393192018f2fa06e9
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzogFzpjufAq18st8e:bAvJCYOOvbRPDEgXVFzpCYVu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012234-22.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2156	demka.exe

Loads dropped DLL 1 IoCs

pid	Process
1872	2024-01-18_4288ae8a1edd0e80c462a22b58ca1f47_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1872	2024-01-18_4288ae8a1edd0e80c462a22b58ca1f47_cryptolocker.exe
2156	demka.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1872 wrote to memory of 2156	1872	2024-01-18_4288ae8a1edd0e80c462a22b58ca1f47_cryptolocker.exe	16
PID 1872 wrote to memory of 2156	1872	2024-01-18_4288ae8a1edd0e80c462a22b58ca1f47_cryptolocker.exe	16
PID 1872 wrote to memory of 2156	1872	2024-01-18_4288ae8a1edd0e80c462a22b58ca1f47_cryptolocker.exe	16
PID 1872 wrote to memory of 2156	1872	2024-01-18_4288ae8a1edd0e80c462a22b58ca1f47_cryptolocker.exe	16

C:\Users\Admin\AppData\Local\Temp\2024-01-18_4288ae8a1edd0e80c462a22b58ca1f47_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-18_4288ae8a1edd0e80c462a22b58ca1f47_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1872
- C:\Users\Admin\AppData\Local\Temp\demka.exe
  "C:\Users\Admin\AppData\Local\Temp\demka.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2156

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
94d5e5b630c8e02a7fe754d6886eab7a

SHA1
686eb1b959cd211f56874c6dd266ece7246c5a16

SHA256
a7f4987c781bf32dfbfe9217d4fbc779e63eecc6b47130c27d5d1471a8ab712c

SHA512
326e478384d8e22cde3261609e8660710aa4809a28577dd742586eb087358e4c47bc6a20960d40d02a031805249aa37670c8941c94dbeb12ebc7de578212226f

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab3287.tmp

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar371C.tmp

Filesize
171KB

MD5
9c0c641c06238516f27941aa1166d427

SHA1
64cd549fb8cf014fcd9312aa7a5b023847b6c977

SHA256
4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

SHA512
936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

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

Filesize
33KB

MD5
aaf462882d3b6700f428b5225e2dd132

SHA1
7741b652c538fca78ecbfd84627c626ba7b822e4

SHA256
4fbaae7f3008c6b0141e39a737f81f1be1d2f8d68f40e0ac96a331bdbb3a1ce4

SHA512
f4aaa87b8feb71677a39d451f2696523c762b3d328cfa59b953e6b02fed89d81e2961ae61e703db8f77271c6ba6e14d35227dced0a446898872df4082def5e66

Download Submit
memory/1872-0-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1872-2-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1872-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2156-23-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download