bb095aae199ccfcba3764055b85fd94d40ed1504c46b67a0c31d4bcb01a9674c

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28/02/2024, 12:43

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General

Target

2024-02-28_05c1b99e40619e0a5f96f4a69525b700_cryptolocker.exe
Size

52KB
MD5

05c1b99e40619e0a5f96f4a69525b700
SHA1

f8ff7dc30eb4f4b82fcf80fdb7078bd096071e0e
SHA256

bb095aae199ccfcba3764055b85fd94d40ed1504c46b67a0c31d4bcb01a9674c
SHA512

50abcac4f0f76aff6351938ab03bcfb9763d0dfdbdf7a192a50e9e7f0f1ebd623b310bc05b940c340acd954d5834ed8d321d4a6a82c36dbf4cafc55cfdfe1a0f
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qn8pKIRsznl7:79mqyNhQMOtEvwDpjBxe8TpXRSl7

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2992-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001224d-11.dat	CryptoLocker_rule2
behavioral1/memory/2992-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3036-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2992-13-0x0000000000600000-0x000000000060F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2992-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c00000001224d-11.dat	CryptoLocker_set1
behavioral1/memory/2992-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3036-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2992-13-0x0000000000600000-0x000000000060F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3036	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2992	2024-02-28_05c1b99e40619e0a5f96f4a69525b700_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 2992 wrote to memory of 3036	2992	2024-02-28_05c1b99e40619e0a5f96f4a69525b700_cryptolocker.exe	28
PID 2992 wrote to memory of 3036	2992	2024-02-28_05c1b99e40619e0a5f96f4a69525b700_cryptolocker.exe	28
PID 2992 wrote to memory of 3036	2992	2024-02-28_05c1b99e40619e0a5f96f4a69525b700_cryptolocker.exe	28
PID 2992 wrote to memory of 3036	2992	2024-02-28_05c1b99e40619e0a5f96f4a69525b700_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-28_05c1b99e40619e0a5f96f4a69525b700_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_05c1b99e40619e0a5f96f4a69525b700_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2992
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3036

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
52KB

MD5
b19e99cf262dd11ef512f17cf15af4d6

SHA1
dd80d427451aecdafa2e950990aee352217faa69

SHA256
92baf616c7c33a96240ba3c8ffad955095da6fdfbac4badfe10e87ac57de487c

SHA512
6261e752d6b42117cb96bb9f5e6064cdc34e530e572833b5e0fdfb3e50593871d117544c0e212e765023e3e22c0180b7e65f01bec0dfe766324da997a3470037

Download Submit
memory/2992-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2992-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2992-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2992-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2992-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2992-13-0x0000000000600000-0x000000000060F000-memory.dmp

Filesize
60KB

Download
memory/3036-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3036-19-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/3036-22-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download