6f2cc9ca4294952ee5e520bb4744cc9973d7345f71b17b71a5459ae2cfb1add5

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/02/2024, 05:45

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General

Target

2024-02-23_540dd32e364e7a5b56564d4274b4074e_cryptolocker.exe
Size

63KB
MD5

540dd32e364e7a5b56564d4274b4074e
SHA1

b2dbe0ee9cb885fe381071d7b6b8b1c4f903e6d3
SHA256

6f2cc9ca4294952ee5e520bb4744cc9973d7345f71b17b71a5459ae2cfb1add5
SHA512

545ec953f7e281c2ec9507e46024c679c367499d07f7fc0a88a90d7cbeda94c97c67804464c7288d533234d3fcfc30f0517e93079b89cfd288dda9c91c989531
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMHpaIq:TCjsIOtEvwDpj5HE/OUHnSMt

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1880-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a00000001225c-11.dat	CryptoLocker_rule2
behavioral1/memory/1880-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2536-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2536-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1880-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a00000001225c-11.dat	CryptoLocker_set1
behavioral1/memory/1880-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2536-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2536-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2536	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1880	2024-02-23_540dd32e364e7a5b56564d4274b4074e_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 1880 wrote to memory of 2536	1880	2024-02-23_540dd32e364e7a5b56564d4274b4074e_cryptolocker.exe	28
PID 1880 wrote to memory of 2536	1880	2024-02-23_540dd32e364e7a5b56564d4274b4074e_cryptolocker.exe	28
PID 1880 wrote to memory of 2536	1880	2024-02-23_540dd32e364e7a5b56564d4274b4074e_cryptolocker.exe	28
PID 1880 wrote to memory of 2536	1880	2024-02-23_540dd32e364e7a5b56564d4274b4074e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-23_540dd32e364e7a5b56564d4274b4074e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_540dd32e364e7a5b56564d4274b4074e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1880
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2536

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
63KB

MD5
de59b17d9ae4f748bc4250c8895b7da5

SHA1
d8bf8e137b315f62488e3e355e3223aa5eb13ba9

SHA256
af0f3c4e159d5124eb188b70ba8781d117f61afe8bff5fedb65ff49549dc3d5b

SHA512
9d731ef846cd87aba7bd0ebaee16027a4175d1faf3864b21077234a93be171ad3ba166e4dbf03b20134ebe9b7b89ab03d08f71fba61c68bba4b5b53d0443ddd9

Download Submit
memory/1880-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1880-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1880-2-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/1880-4-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1880-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2536-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2536-18-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2536-20-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2536-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download