27ad2d13ca9d5948453e4ef9ff4dee05972162f1f8dca3796fc6dba3e74ad8e1

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21/02/2024, 16:47

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General

Target

2024-02-21_78059d945f9c9d4f6c0d3e3a8fc09fd5_cryptolocker.exe
Size

54KB
MD5

78059d945f9c9d4f6c0d3e3a8fc09fd5
SHA1

c5afd4604de4f2f1111fce8f3b7fe1324e3eb9c1
SHA256

27ad2d13ca9d5948453e4ef9ff4dee05972162f1f8dca3796fc6dba3e74ad8e1
SHA512

9f675d8b1d36e4e89d5ffbe5ff51d1c1b4f1a99db551c6fcb6f39b4fdabf8a621ecb096180f6b73ec47a1095f2b5e9f883b285276902059220d4a47fd6080d04
SSDEEP

384:x0VkMq01bJ3wtEwPS8HLEh+Jagz+3be+26a4rIcVRYp055TOtOOtEvwDpjqIGR57:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbKq

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2100-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000012226-14.dat	CryptoLocker_rule2
behavioral1/memory/2100-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2548-19-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2100-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000012226-14.dat	CryptoLocker_set1
behavioral1/memory/2100-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2548-19-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral1/memory/2100-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x0009000000012226-14.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2100-15-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2548-19-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2548	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2100	2024-02-21_78059d945f9c9d4f6c0d3e3a8fc09fd5_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 2100 wrote to memory of 2548	2100	2024-02-21_78059d945f9c9d4f6c0d3e3a8fc09fd5_cryptolocker.exe	28
PID 2100 wrote to memory of 2548	2100	2024-02-21_78059d945f9c9d4f6c0d3e3a8fc09fd5_cryptolocker.exe	28
PID 2100 wrote to memory of 2548	2100	2024-02-21_78059d945f9c9d4f6c0d3e3a8fc09fd5_cryptolocker.exe	28
PID 2100 wrote to memory of 2548	2100	2024-02-21_78059d945f9c9d4f6c0d3e3a8fc09fd5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-21_78059d945f9c9d4f6c0d3e3a8fc09fd5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_78059d945f9c9d4f6c0d3e3a8fc09fd5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2548

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
54KB

MD5
1641f08104f14ee0e2c2354417307ad4

SHA1
467d6ddf97a2dda3ccbe37ddbabb8f42f81bc5dd

SHA256
552d1df3114404d78e47620af64108e520821b99290e355603c30ee7201f67b8

SHA512
ee4a4e1d0011bcfa761ce0da58b3a07dee566cbb2269ac0901e8b96bd89dffa9e60fda3d204631215045e31600f88a9ae6a90235ecf48f9ce27430318663cad0

Download Submit
memory/2100-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2100-1-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2100-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2100-4-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2100-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2100-17-0x0000000001FA0000-0x0000000001FB0000-memory.dmp

Filesize
64KB

Download
memory/2100-27-0x0000000001FA0000-0x0000000001FB0000-memory.dmp

Filesize
64KB

Download
memory/2548-19-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2548-21-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2548-18-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download