fa864149526596a1fcf6e346a48095a33e5f229112461609ef9c1f34cd5ed139

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
15-04-2024 06:46

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General

Target

2024-04-15_f2f9661acd9cc99d21fdd06243915100_cryptolocker.exe
Size

48KB
MD5

f2f9661acd9cc99d21fdd06243915100
SHA1

2f66b17e35072fab63f8ea3b087570f47c4b3039
SHA256

fa864149526596a1fcf6e346a48095a33e5f229112461609ef9c1f34cd5ed139
SHA512

8bf07d842855f0c7f66e59a4fb516cdb8a7a1b268685d4e6da1da7b4ff9bc06af4a4543f747e39b37fca50820f93f60896c91ec03b110a631523b6a2baf9711d
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWE6BLbjG9RzhwaN4NOX:xj+VGMOtEvwDpjy+TN4w

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2168-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b0000000121c5-11.dat	CryptoLocker_rule2
behavioral1/memory/2168-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1724-25-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2168-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b0000000121c5-11.dat	CryptoLocker_set1
behavioral1/memory/2168-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1724-25-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral1/memory/2168-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000b0000000121c5-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2168-15-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1724-25-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
1724	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2168	2024-04-15_f2f9661acd9cc99d21fdd06243915100_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 2168 wrote to memory of 1724	2168	2024-04-15_f2f9661acd9cc99d21fdd06243915100_cryptolocker.exe	28
PID 2168 wrote to memory of 1724	2168	2024-04-15_f2f9661acd9cc99d21fdd06243915100_cryptolocker.exe	28
PID 2168 wrote to memory of 1724	2168	2024-04-15_f2f9661acd9cc99d21fdd06243915100_cryptolocker.exe	28
PID 2168 wrote to memory of 1724	2168	2024-04-15_f2f9661acd9cc99d21fdd06243915100_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-15_f2f9661acd9cc99d21fdd06243915100_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_f2f9661acd9cc99d21fdd06243915100_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2168
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1724

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
48KB

MD5
70012bf7362480383b68c74855ceab6f

SHA1
bcf66fecc9605b2af6de96944af0af11e712d30f

SHA256
525191b5c7ac76fb4c1cd8494ae563186ce9678f9de1b7f294b49d841527954c

SHA512
89a1dbb27f530ebf755c3ca220a90149930b9e86dc7d44982cc236270368397c5a59b8a2ea99584f63a6a7d375736e7cdbbce6c018c3b5488b8d5e90b0205c44

Download Submit
memory/1724-17-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/1724-18-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1724-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2168-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2168-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2168-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2168-2-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2168-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download