b44079dd5ff83b5893699f4a036d63e23b7a82c9ed21116ddfcfb3898e7d1bb4

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
12/05/2024, 07:36

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General

Target

2024-05-12_9fbcef97bfb93c019179659360a45a7d_cryptolocker.exe
Size

43KB
MD5

9fbcef97bfb93c019179659360a45a7d
SHA1

b24f41e261d15485b6e81a6bf446f30d9a54b764
SHA256

b44079dd5ff83b5893699f4a036d63e23b7a82c9ed21116ddfcfb3898e7d1bb4
SHA512

1c5f115acb899f92e9484120ab12a2f16bc4169560e5bcc054f0bd414101808a7d3fac0be8191a59b2be784897b77dfa66477b3db187b3f3b7b3498976599bb2
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/CtXabM05:6j+1NMOtEvwDpjrR2XabMW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2420-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d000000012333-11.dat	CryptoLocker_rule2
behavioral1/memory/2420-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3052-25-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2420-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d000000012333-11.dat	CryptoLocker_set1
behavioral1/memory/2420-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3052-25-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral1/memory/2420-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000d000000012333-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2420-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/3052-25-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
3052	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2420	2024-05-12_9fbcef97bfb93c019179659360a45a7d_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 2420 wrote to memory of 3052	2420	2024-05-12_9fbcef97bfb93c019179659360a45a7d_cryptolocker.exe	28
PID 2420 wrote to memory of 3052	2420	2024-05-12_9fbcef97bfb93c019179659360a45a7d_cryptolocker.exe	28
PID 2420 wrote to memory of 3052	2420	2024-05-12_9fbcef97bfb93c019179659360a45a7d_cryptolocker.exe	28
PID 2420 wrote to memory of 3052	2420	2024-05-12_9fbcef97bfb93c019179659360a45a7d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-12_9fbcef97bfb93c019179659360a45a7d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-12_9fbcef97bfb93c019179659360a45a7d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3052

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

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Downloads

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

Filesize
43KB

MD5
f66852f3d1653dead33dd8620954b4a1

SHA1
7f5d53d714715b6ffce285d9b6b5f2de2003f8ba

SHA256
e30266269f096d26b2f45c1cbca664cd617f63d53cf307f36ec7956072d2bd10

SHA512
3c8c5a92d4d2e70cb31e2a6f82d5616bf583ec9354ed10e770c25ea4fb41e3ef38b1323782266bbd0bf874c1d4231c2ebd15488041aeaea04b00058c54408693

Download Submit
memory/2420-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2420-1-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2420-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2420-9-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2420-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3052-17-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3052-24-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3052-25-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download