808186056be10c671d8340e305dcb86d211f49409f33ad1ee9d2f1dbeafa673f

Analysis

max time kernel
132s
max time network
142s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
17/02/2024, 18:23

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General

Target

2024-02-17_0aa41724294153a61cc3d9b0356ae46a_cryptolocker.exe
Size

57KB
MD5

0aa41724294153a61cc3d9b0356ae46a
SHA1

42e7733df5afba11a9b444ebf2ba530a2a801a3c
SHA256

808186056be10c671d8340e305dcb86d211f49409f33ad1ee9d2f1dbeafa673f
SHA512

371cc223f525bc38917648618c7823342cb62994f3fc20d6107d8f74d7affed30678f1a63ba7293717b6fbc31afeab6f646a34a47a17548d2454b6b0c0e2a722
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZgBh8i6g7Goi20PbiA:xj+VGMOtEvwDpjubEgV20DiA

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2248-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000012287-11.dat	CryptoLocker_rule2
behavioral1/memory/2248-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2896-25-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2248-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000012287-11.dat	CryptoLocker_set1
behavioral1/memory/2248-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2896-25-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral1/memory/2248-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x0009000000012287-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2248-15-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2896-25-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2896	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2248	2024-02-17_0aa41724294153a61cc3d9b0356ae46a_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 2248 wrote to memory of 2896	2248	2024-02-17_0aa41724294153a61cc3d9b0356ae46a_cryptolocker.exe	28
PID 2248 wrote to memory of 2896	2248	2024-02-17_0aa41724294153a61cc3d9b0356ae46a_cryptolocker.exe	28
PID 2248 wrote to memory of 2896	2248	2024-02-17_0aa41724294153a61cc3d9b0356ae46a_cryptolocker.exe	28
PID 2248 wrote to memory of 2896	2248	2024-02-17_0aa41724294153a61cc3d9b0356ae46a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-17_0aa41724294153a61cc3d9b0356ae46a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_0aa41724294153a61cc3d9b0356ae46a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2248
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2896

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

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Downloads

\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
57KB

MD5
9c4eb8e22edf340fca531822e42f0f8d

SHA1
1da549f4aed79e7416e083de5776a3c4cec46c81

SHA256
bb79995a134f49074c3e039bbb51953a9dead6389b83bd711bd56f2a0078151c

SHA512
cb94edbf3b443e6225608bb6425babefe63f8f5242390aa8e91eb1d0f4cc71a0bf706858e3d64056b17d6a296ce96065c562ea4d545d523815544e2232346499

Download Submit
memory/2248-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2248-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2248-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2248-5-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2248-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2896-18-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2896-17-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2896-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download