e1cfd4a107aa64a775d69fef9420fc25ed064a51579124600c2ed5594d849dbf

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
08-03-2024 07:34

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General

Target

2024-03-08_95f57e320483c980d371fb659c9ccdbc_cryptolocker.exe
Size

79KB
MD5

95f57e320483c980d371fb659c9ccdbc
SHA1

6d79b795f87457e56274cd268fd7cb07e89294c5
SHA256

e1cfd4a107aa64a775d69fef9420fc25ed064a51579124600c2ed5594d849dbf
SHA512

82e04f7bc87a46003612f1c1d537d8b7162ea8bcfca962c08c4022ff7d86356cf3d716f8d6bdaa6b295e501156838f91b00b25a859b7387ca5862ce377ee6bd4
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfWafHN0:vCjsIOtEvwDpj5H9YvQd2G

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012253-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012253-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2608	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1640	2024-03-08_95f57e320483c980d371fb659c9ccdbc_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 1640 wrote to memory of 2608	1640	2024-03-08_95f57e320483c980d371fb659c9ccdbc_cryptolocker.exe	28
PID 1640 wrote to memory of 2608	1640	2024-03-08_95f57e320483c980d371fb659c9ccdbc_cryptolocker.exe	28
PID 1640 wrote to memory of 2608	1640	2024-03-08_95f57e320483c980d371fb659c9ccdbc_cryptolocker.exe	28
PID 1640 wrote to memory of 2608	1640	2024-03-08_95f57e320483c980d371fb659c9ccdbc_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-08_95f57e320483c980d371fb659c9ccdbc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_95f57e320483c980d371fb659c9ccdbc_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1640
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2608

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
79KB

MD5
942008ece5fa86465e9aaa9e0e248b6a

SHA1
8e2d5389dbb5ff1daa7524682a4e7912298ab939

SHA256
fbcc5a67a90854e344cf1b4551edeaecb73a49bcdabe1e4c573bda200e2be9ba

SHA512
15fbaaf440e6ae772999f65623990242b3a027ae5bbb02f35a06e8cb05aae7236c269ebd290f6e464c5be9d5db55d49aa891f0cd6aececd53e31d064c8990038

Download Submit
memory/1640-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1640-1-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1640-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2608-15-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2608-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download