72cd06ac2c34d1d1b94389ae93a68e7055c5a205c6f7c46c2e3f5c77bfa52294

Analysis

max time kernel
140s
max time network
155s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/05/2024, 17:56

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General

Target

2024-05-26_febf82873a06c712ac620dbfb3e639b0_cryptolocker.exe
Size

53KB
MD5

febf82873a06c712ac620dbfb3e639b0
SHA1

c9ee5e1fef782e9631b31468c657e2ea5bec9978
SHA256

72cd06ac2c34d1d1b94389ae93a68e7055c5a205c6f7c46c2e3f5c77bfa52294
SHA512

f2d3b41f8260c27c7755fe9f5e17db775876ff9fa3c31336087c0c3f2660fa5df7e655721590bfb7355a4e4867c6933c76f13a6c63a637ab84115d256554f81b
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPhqlcnvhx5/xFRkHU:6j+1NMOtEvwDpjr8hhXi0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2892-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d000000014698-11.dat	CryptoLocker_rule2
behavioral1/memory/2892-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2944-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2944-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2892-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d000000014698-11.dat	CryptoLocker_set1
behavioral1/memory/2892-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2944-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2944-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/2892-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000d000000014698-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2892-14-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2944-16-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2944-26-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2944	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2892	2024-05-26_febf82873a06c712ac620dbfb3e639b0_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 2892 wrote to memory of 2944	2892	2024-05-26_febf82873a06c712ac620dbfb3e639b0_cryptolocker.exe	28
PID 2892 wrote to memory of 2944	2892	2024-05-26_febf82873a06c712ac620dbfb3e639b0_cryptolocker.exe	28
PID 2892 wrote to memory of 2944	2892	2024-05-26_febf82873a06c712ac620dbfb3e639b0_cryptolocker.exe	28
PID 2892 wrote to memory of 2944	2892	2024-05-26_febf82873a06c712ac620dbfb3e639b0_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-26_febf82873a06c712ac620dbfb3e639b0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-26_febf82873a06c712ac620dbfb3e639b0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2892
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2944

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
54KB

MD5
bcd29465a10f6f6516d418f5d57a6084

SHA1
974c4109b31b959dfcf9ad8adfb897562e6fe91d

SHA256
598569105fa859a01fc0340b6338c60f15cd281166ffec648dad7f4b7e921d30

SHA512
0bc2009924b092b17e5a676c11430d18369b0cc81fc9142e871b6b1acb8897fbe32cbe68753cf04f66ea8edcf7507c6f7bc35cfd05be11475184eb8aaf30a7c5

Download Submit
memory/2892-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2892-1-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2892-3-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2892-2-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2892-14-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2944-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2944-19-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2944-18-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2944-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download