b752886ad1fdc32fc42834f66486aee9283800226d3c0d4c29f8618a4fd9a128

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, 18:24

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General

Target

2024-05-12_1e17f9ac73649c66987d37b32ab2e5dc_cryptolocker.exe
Size

96KB
MD5

1e17f9ac73649c66987d37b32ab2e5dc
SHA1

a8f609a61a2a6804bb27c47fe9344fdeab3e410c
SHA256

b752886ad1fdc32fc42834f66486aee9283800226d3c0d4c29f8618a4fd9a128
SHA512

c8ac93691333d387576571c82e4baf194d247016e737ab8dd9db0400a156b15e84b911b69c7a7bbc8c5fb59e47b7810788fecb5b6934928650e7e4ffbb563e3f
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJYY:xj+VGMOtEvwDpjubwQEIiVmksY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

resource	yara_rule
behavioral1/memory/1964-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d00000001232c-11.dat	CryptoLocker_rule2
behavioral1/memory/1964-13-0x0000000001E20000-0x0000000001E30000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2980-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1964-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2980-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 6 IoCs

resource	yara_rule
behavioral1/memory/1964-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d00000001232c-11.dat	CryptoLocker_set1
behavioral1/memory/1964-13-0x0000000001E20000-0x0000000001E30000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2980-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1964-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2980-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 6 IoCs

resource	yara_rule
behavioral1/memory/1964-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000d00000001232c-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1964-13-0x0000000001E20000-0x0000000001E30000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2980-17-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1964-16-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2980-27-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2980	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1964	2024-05-12_1e17f9ac73649c66987d37b32ab2e5dc_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 1964 wrote to memory of 2980	1964	2024-05-12_1e17f9ac73649c66987d37b32ab2e5dc_cryptolocker.exe	28
PID 1964 wrote to memory of 2980	1964	2024-05-12_1e17f9ac73649c66987d37b32ab2e5dc_cryptolocker.exe	28
PID 1964 wrote to memory of 2980	1964	2024-05-12_1e17f9ac73649c66987d37b32ab2e5dc_cryptolocker.exe	28
PID 1964 wrote to memory of 2980	1964	2024-05-12_1e17f9ac73649c66987d37b32ab2e5dc_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-12_1e17f9ac73649c66987d37b32ab2e5dc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-12_1e17f9ac73649c66987d37b32ab2e5dc_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2980

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
96KB

MD5
3b4887b50a35515718ad63988e1ada85

SHA1
561d0c9e029c66c7c4858d68e7d39ad4c9e3dc6c

SHA256
cadad4875c490d6d7b67ed0129d6af01160b1400ce562f61cb669c38d27232ba

SHA512
c32a6cbe79050523745dc4ad16b868ea732df205203dc66aebf6e388acc14f64619d892652126e440bb36ced6febf47a81421cb06abb2986c9262e3bae936a04

Download Submit
memory/1964-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1964-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1964-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1964-2-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1964-13-0x0000000001E20000-0x0000000001E30000-memory.dmp

Filesize
64KB

Download
memory/1964-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2980-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2980-19-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2980-26-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2980-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download