bd4a79dc2bf273142cbe70aaf5f1c4cc68c75e1a9468c909ebbe28ba064d439d

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, 18:44

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General

Target

2024-03-14_a18b59eabba19626d93afb2adc6e4943_cryptolocker.exe
Size

50KB
MD5

a18b59eabba19626d93afb2adc6e4943
SHA1

f708392baceefa8d7174b13fe865282a62f399f0
SHA256

bd4a79dc2bf273142cbe70aaf5f1c4cc68c75e1a9468c909ebbe28ba064d439d
SHA512

5dd3ae7ead812031ff5d33629341374caee52374f2ec2a1132863fce5a4667c006d8686cf743deb82565888548882b47d86bed347038ae83d4038d82964bb37a
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vxmlcXe:X6QFElP6n+gJBMOtEvwDpjBtExmlb

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001225c-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001225c-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2308	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1880	2024-03-14_a18b59eabba19626d93afb2adc6e4943_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 2308	1880	2024-03-14_a18b59eabba19626d93afb2adc6e4943_cryptolocker.exe	28
PID 1880 wrote to memory of 2308	1880	2024-03-14_a18b59eabba19626d93afb2adc6e4943_cryptolocker.exe	28
PID 1880 wrote to memory of 2308	1880	2024-03-14_a18b59eabba19626d93afb2adc6e4943_cryptolocker.exe	28
PID 1880 wrote to memory of 2308	1880	2024-03-14_a18b59eabba19626d93afb2adc6e4943_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-14_a18b59eabba19626d93afb2adc6e4943_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_a18b59eabba19626d93afb2adc6e4943_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1880
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2308

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\asih.exe

Filesize
51KB

MD5
cb4995799d728b844bfab3cf7bf6c2e8

SHA1
4ce4ec057d5d60ebacfe923ffbb9c79d8e4c19c2

SHA256
fa9b06b61941c23d3979d7378b372e697db450e756e4bdba9cf892bc7974d51f

SHA512
56384caa265cc18f777a15e07f445deab6e4b31424fe180073a2ab58c0ce7f9b142bde40d81f4ad350abc0875c44725a7e9adab372aa6d12eb5b02ecd9492af4

Download Submit
memory/1880-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1880-1-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/1880-8-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2308-16-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2308-15-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download