84de364e6524e231212899bf614bdde954f407a5727e139882567643b434207d

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17/04/2024, 03:43

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General

Target

2024-04-17_58a51d31964b2eaa67f18dc23efcb991_cryptolocker.exe
Size

40KB
MD5

58a51d31964b2eaa67f18dc23efcb991
SHA1

1f57f32a26ebc5578cdce2f0ec4b3d1f50e442a1
SHA256

84de364e6524e231212899bf614bdde954f407a5727e139882567643b434207d
SHA512

1bae50cc7a68a7941bbb1224f6c83950ca96f7e3d3635e44b4d7673305a409dab1a7fff14f1cb8d2380ff3c048f96cb407defecae809b1751d9ac80cafcbc774
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HKcfrW:X6QFElP6n+gJQMOtEvwDpjBsYK6rW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012256-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012256-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1028	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1032	2024-04-17_58a51d31964b2eaa67f18dc23efcb991_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 1032 wrote to memory of 1028	1032	2024-04-17_58a51d31964b2eaa67f18dc23efcb991_cryptolocker.exe	28
PID 1032 wrote to memory of 1028	1032	2024-04-17_58a51d31964b2eaa67f18dc23efcb991_cryptolocker.exe	28
PID 1032 wrote to memory of 1028	1032	2024-04-17_58a51d31964b2eaa67f18dc23efcb991_cryptolocker.exe	28
PID 1032 wrote to memory of 1028	1032	2024-04-17_58a51d31964b2eaa67f18dc23efcb991_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-17_58a51d31964b2eaa67f18dc23efcb991_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-17_58a51d31964b2eaa67f18dc23efcb991_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1032
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1028

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\Local\Temp\asih.exe

Filesize
40KB

MD5
609ae5822c07d332743c11bc7bf076d5

SHA1
89792072f471360da4b533e82e912bdfbaf58b4d

SHA256
be881711d552177aa2c9f2290963c311f3de0fdd252fa67ced9ce92c621f93fb

SHA512
83eb944540ca5a7171f204c9243a9e077fffe66978f12dd2180b15be3b2348109eb2045f3046860361fa546e04cc50ddf8395d5ad65f0f984b491b4dc26ddeb0

Download Submit
memory/1028-15-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1028-21-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1032-0-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/1032-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1032-3-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download