903575b4fd53a1dc493d01314c7648eeaf17fbaaf6bda146cf423c4a6baef532

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18/02/2024, 17:55

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General

Target

2024-02-18_932647fa968bed1ad446a5477b57b056_cryptolocker.exe
Size

102KB
MD5

932647fa968bed1ad446a5477b57b056
SHA1

bd36fea153e41332ce1af1ad4e072f86bd04fca6
SHA256

903575b4fd53a1dc493d01314c7648eeaf17fbaaf6bda146cf423c4a6baef532
SHA512

cbccc5387e05dee0bf2433a32de94ae8421a78a9074f7682b7091eef243c80102a63a56d4f83cae9ff550993197ef7136f046a8e549d917d844762f456bd93bc
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJHlv/k2NMb5:xj+VGMOtEvwDpjubwQEIiVmkxv/m5

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2052-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2052-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1900-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000012308-16.dat	CryptoLocker_rule2
behavioral1/memory/1900-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2052-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2052-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1900-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000012308-16.dat	CryptoLocker_set1
behavioral1/memory/1900-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/2052-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2052-15-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1900-17-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000c000000012308-16.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1900-27-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
1900	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2052	2024-02-18_932647fa968bed1ad446a5477b57b056_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 2052 wrote to memory of 1900	2052	2024-02-18_932647fa968bed1ad446a5477b57b056_cryptolocker.exe	28
PID 2052 wrote to memory of 1900	2052	2024-02-18_932647fa968bed1ad446a5477b57b056_cryptolocker.exe	28
PID 2052 wrote to memory of 1900	2052	2024-02-18_932647fa968bed1ad446a5477b57b056_cryptolocker.exe	28
PID 2052 wrote to memory of 1900	2052	2024-02-18_932647fa968bed1ad446a5477b57b056_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_932647fa968bed1ad446a5477b57b056_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_932647fa968bed1ad446a5477b57b056_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2052
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1900

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\misid.exe

Filesize
102KB

MD5
e77b66212bf81307fe6ea703d0473536

SHA1
6731b3daead9cc86be227a6abfaed3595bf29d6d

SHA256
c9a6adb38af0588004abbe66591d5a0dd635be9dd9b61705eb0c826989f4f0e6

SHA512
180461ffd29c48dd451f01388c9490e187cee9082f057cd817edc77f65e615a44f1de2084dfafdf1ff95524b0a5783c5bee97cec41b9dc3aea793846a51cf403

Download Submit
memory/1900-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1900-19-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1900-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1900-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2052-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2052-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2052-2-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2052-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2052-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2052-14-0x0000000002800000-0x0000000002810000-memory.dmp

Filesize
64KB

Download