abcbf1df312087c1849600b16369845fcfc98bb958325df2808a92461929dbe5

Analysis

max time kernel
150s
max time network
149s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 02:31

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General

Target

2024-05-22_4a6ba5cca4f542c3c6bf0ff8b4a8294e_cryptolocker.exe
Size

44KB
MD5

4a6ba5cca4f542c3c6bf0ff8b4a8294e
SHA1

06009607f7d6c9341d934696116c742f42b76254
SHA256

abcbf1df312087c1849600b16369845fcfc98bb958325df2808a92461929dbe5
SHA512

9f30f1da48c36ece7efc4428e4008895c02cf56c22913eb9ce3487f21c675448786be8ba937222de9b53726f4eecab4444bbc97f998aece27cf227a1a796c65f
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/aMDH:6j+1NMOtEvwDpjrRrb

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2156-1-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral1/memory/2508-23-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2156-1-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_set1
behavioral1/memory/2508-23-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2156-1-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
\Users\Admin\AppData\Local\Temp\misid.exe	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2508-23-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

2508 misid.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-22_4a6ba5cca4f542c3c6bf0ff8b4a8294e_cryptolocker.exe

pid process

2156 2024-05-22_4a6ba5cca4f542c3c6bf0ff8b4a8294e_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2508	misid.exe

pid	process
2156	2024-05-22_4a6ba5cca4f542c3c6bf0ff8b4a8294e_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-22_4a6ba5cca4f542c3c6bf0ff8b4a8294e_cryptolocker.exe

description	pid	process	target process
PID 2156 wrote to memory of 2508	2156	2024-05-22_4a6ba5cca4f542c3c6bf0ff8b4a8294e_cryptolocker.exe	misid.exe
PID 2156 wrote to memory of 2508	2156	2024-05-22_4a6ba5cca4f542c3c6bf0ff8b4a8294e_cryptolocker.exe	misid.exe
PID 2156 wrote to memory of 2508	2156	2024-05-22_4a6ba5cca4f542c3c6bf0ff8b4a8294e_cryptolocker.exe	misid.exe
PID 2156 wrote to memory of 2508	2156	2024-05-22_4a6ba5cca4f542c3c6bf0ff8b4a8294e_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_4a6ba5cca4f542c3c6bf0ff8b4a8294e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_4a6ba5cca4f542c3c6bf0ff8b4a8294e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2156

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
2⤵
- Executes dropped EXE
PID:2508

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\misid.exe
Filesize
44KB

MD5
f74b9dc468a419714bb21c287683d0d5

SHA1
bff404c9535af790aacda255840f7526f4599a89

SHA256
12859b9f1492db82f00567e28552af6d6b1c7c52ebc6754bc0be57f223f8ac0c

SHA512
714ea802496ff8c06afe6431904d7d37463066a08dd0c47c7b192c3056fef13583d171f8009cd86c651f70b132fa4bc177f0c2b63dffdf6dddd95ed8a35fc0a9

Download Submit
memory/2156-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2156-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2156-1-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2156-4-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2508-24-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2508-23-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2508-16-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download