acb527b8e5715ab4b54e03e3cb770eef49d601ce623e971bf00c7cab1fa69242

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
14-03-2024 07:56

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General

Target

2024-03-14_f68e31334973f3e3c0b06329c6f4e30e_cryptolocker.exe
Size

58KB
MD5

f68e31334973f3e3c0b06329c6f4e30e
SHA1

98272bed2ded77ec76a118d2f83107be00ebbfb2
SHA256

acb527b8e5715ab4b54e03e3cb770eef49d601ce623e971bf00c7cab1fa69242
SHA512

8557c82d4c6df3693325042e4a1aabd16116ca9eb267473640e7e2470b82da8a6536e64eb3e1bdbc4375188e02f5f4041002dbb05c6875fffad9b8f1cee62ac2
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMYG:TCjsIOtEvwDpj5HE/OUHnSMW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2388-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x00080000000120dc-11.dat	CryptoLocker_rule2
behavioral1/memory/3020-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2388-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3020-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2388-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x00080000000120dc-11.dat	CryptoLocker_set1
behavioral1/memory/3020-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2388-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3020-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3020	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2388	2024-03-14_f68e31334973f3e3c0b06329c6f4e30e_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 2388 wrote to memory of 3020	2388	2024-03-14_f68e31334973f3e3c0b06329c6f4e30e_cryptolocker.exe	28
PID 2388 wrote to memory of 3020	2388	2024-03-14_f68e31334973f3e3c0b06329c6f4e30e_cryptolocker.exe	28
PID 2388 wrote to memory of 3020	2388	2024-03-14_f68e31334973f3e3c0b06329c6f4e30e_cryptolocker.exe	28
PID 2388 wrote to memory of 3020	2388	2024-03-14_f68e31334973f3e3c0b06329c6f4e30e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-14_f68e31334973f3e3c0b06329c6f4e30e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_f68e31334973f3e3c0b06329c6f4e30e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3020

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
59KB

MD5
1ca3d42dce4eed72fc2cf59988727c2a

SHA1
64eeb275ce447bb758678287a245388fa6ba823e

SHA256
78b7dbb1f38226c22b407bfe3799d6740c23d064f3d9ff386466ea022d59cb15

SHA512
2221782727520d5af9dcab9d52cabdd2533e5649f91a124561bca8e669ee2944189125e6ee105d8ac4c3b7f3a112257f35e6a6b199e3eb81bf06b628baaa56a0

Download Submit
memory/2388-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2388-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2388-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2388-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2388-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/3020-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/3020-18-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3020-20-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/3020-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download