c75f4869a645b834b94fb48c7235096cff4ab2048c3f0cf48ce2ff46613983ec

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26-04-2024 20:47

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General

Target

2024-04-26_a968ae702a4f9b694f3002f9b2b8b03c_cryptolocker.exe
Size

127KB
MD5

a968ae702a4f9b694f3002f9b2b8b03c
SHA1

d0c14c3281c2ec161cc620a34f28ace1457aaa1a
SHA256

c75f4869a645b834b94fb48c7235096cff4ab2048c3f0cf48ce2ff46613983ec
SHA512

882f7b2a5d51d9c7519574d45feae9386a346d80f7ab4156f3be7b469945b67c9f76d5d0244712a0a0e54b2bd3863f9a5ad87ff2dbbfc5adf5e6da5e4c14c821
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfIuBKLUYOVbvh//LITN:vCjsIOtEvwDpj5H9YvQd2RE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001450b-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001450b-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2940	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2944	2024-04-26_a968ae702a4f9b694f3002f9b2b8b03c_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2944 wrote to memory of 2940	2944	2024-04-26_a968ae702a4f9b694f3002f9b2b8b03c_cryptolocker.exe	28
PID 2944 wrote to memory of 2940	2944	2024-04-26_a968ae702a4f9b694f3002f9b2b8b03c_cryptolocker.exe	28
PID 2944 wrote to memory of 2940	2944	2024-04-26_a968ae702a4f9b694f3002f9b2b8b03c_cryptolocker.exe	28
PID 2944 wrote to memory of 2940	2944	2024-04-26_a968ae702a4f9b694f3002f9b2b8b03c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-26_a968ae702a4f9b694f3002f9b2b8b03c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-26_a968ae702a4f9b694f3002f9b2b8b03c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2944
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2940

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

\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
127KB

MD5
a265d7d05414aa186746414844f91a28

SHA1
a7129de5d7e44e044115d878b3c558b2554da632

SHA256
791da0d3732a76f4058854014fc70a4b7cb9f046056ea20c7054d07ed4e86b49

SHA512
2466e49fdba3daa61ad91b9ceecdd8499348d45bc3b4bead758a834beed1276eb0cd1a6c655ab052544e275bb6538b6b4014f9dbdf8e42d6520dbb19702f0b4e

Download Submit
memory/2940-15-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2940-22-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2944-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2944-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2944-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download