27e09521f52f0cf0d391dee6a7aa24b53f98c1676656efcb2536869d95e0e66f

Analysis

max time kernel
148s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
21/02/2024, 14:07

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General

Target

2024-02-21_c7fc48add7e5d010c1b3b551ba3c7663_cryptolocker.exe
Size

37KB
MD5

c7fc48add7e5d010c1b3b551ba3c7663
SHA1

374ba1f016f0296b74e6dda1862f54c992d69d6c
SHA256

27e09521f52f0cf0d391dee6a7aa24b53f98c1676656efcb2536869d95e0e66f
SHA512

ae775b04984af78f9aa209968c161e4ac15131ecc07c7fd74590ee436d99bcdb1f5f0515086e0d6d7bec105e7aeaabaa52cf998cd632ae576a72ff1cd7f3422c
SSDEEP

384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8u5cZnfX6:bgX4zYcgTEu6QOaryfjqDDw3sCu5mX6

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001226e-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1340	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2064	2024-02-21_c7fc48add7e5d010c1b3b551ba3c7663_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 2064 wrote to memory of 1340	2064	2024-02-21_c7fc48add7e5d010c1b3b551ba3c7663_cryptolocker.exe	28
PID 2064 wrote to memory of 1340	2064	2024-02-21_c7fc48add7e5d010c1b3b551ba3c7663_cryptolocker.exe	28
PID 2064 wrote to memory of 1340	2064	2024-02-21_c7fc48add7e5d010c1b3b551ba3c7663_cryptolocker.exe	28
PID 2064 wrote to memory of 1340	2064	2024-02-21_c7fc48add7e5d010c1b3b551ba3c7663_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-21_c7fc48add7e5d010c1b3b551ba3c7663_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_c7fc48add7e5d010c1b3b551ba3c7663_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2064
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1340

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\hasfj.exe

Filesize
38KB

MD5
c8f8df68c18ac536936d9fe9a39be16b

SHA1
a727483545ba7f645056241ecafd8791aad2f38e

SHA256
26fac4a54da796b48349eca854c61a9c214491fbda6a96f26df0fddf777a0322

SHA512
547da34dea857b47f0c3f830ea4712a1bbebcb3650ed92e38fe809d2f5999f7fdbddbd5c9ef374017b127e8080cdbb566f6981b83305a13e44d79a3275f125b1

Download Submit
memory/1340-15-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/1340-17-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/2064-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2064-1-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2064-7-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download