1726b9d5ced2ab7f5c30d08ccd8e6cafcf2525825deed08a7564b600337d582a

Analysis

max time kernel
136s
max time network
146s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21/02/2024, 19:55

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General

Target

2024-02-21_bac9c90bfc1aba30f7f1e346561ba66b_cryptolocker.exe
Size

99KB
MD5

bac9c90bfc1aba30f7f1e346561ba66b
SHA1

d18bde7922c91ab9fd4decc508e54fe60544d6cd
SHA256

1726b9d5ced2ab7f5c30d08ccd8e6cafcf2525825deed08a7564b600337d582a
SHA512

e7dc693ec189a60dc59270e1e77ed5b8ab49a630bb374b99414b6e0ef36f2f3c07504cc8252d85ea4b36d2bca56e02a64b8c2a6d11c5d2cd58d7006f2d65a69b
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJHlv/k2i:xj+VGMOtEvwDpjubwQEIiVmkxv/u

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

resource	yara_rule
behavioral1/memory/3000-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a00000001224e-11.dat	CryptoLocker_rule2
behavioral1/memory/3000-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2828-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3000-13-0x0000000001FE0000-0x0000000001FF0000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2828-24-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 6 IoCs

resource	yara_rule
behavioral1/memory/3000-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a00000001224e-11.dat	CryptoLocker_set1
behavioral1/memory/3000-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2828-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3000-13-0x0000000001FE0000-0x0000000001FF0000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2828-24-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 6 IoCs

resource	yara_rule
behavioral1/memory/3000-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000a00000001224e-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/3000-15-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2828-17-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/3000-13-0x0000000001FE0000-0x0000000001FF0000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2828-24-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2828	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
3000	2024-02-21_bac9c90bfc1aba30f7f1e346561ba66b_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 3000 wrote to memory of 2828	3000	2024-02-21_bac9c90bfc1aba30f7f1e346561ba66b_cryptolocker.exe	28
PID 3000 wrote to memory of 2828	3000	2024-02-21_bac9c90bfc1aba30f7f1e346561ba66b_cryptolocker.exe	28
PID 3000 wrote to memory of 2828	3000	2024-02-21_bac9c90bfc1aba30f7f1e346561ba66b_cryptolocker.exe	28
PID 3000 wrote to memory of 2828	3000	2024-02-21_bac9c90bfc1aba30f7f1e346561ba66b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-21_bac9c90bfc1aba30f7f1e346561ba66b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_bac9c90bfc1aba30f7f1e346561ba66b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3000
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2828

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
100KB

MD5
e15a4c14fa98d0990b774782620725c6

SHA1
8092a9ce3225d66e169efdfb748068923d9c146b

SHA256
0923726b7b4cd63b00a25f46ea6ca355c5803ad1db1b9dd01f94775c287a44eb

SHA512
8c95f550fa17b1fb86e840ec6099b42c1309a96d080cf419a3c80bc01cfd7ea987a7071f24bc26789889e1bef1586b14f891595a04455c809488c61e51fe78a6

Download Submit
memory/2828-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2828-19-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2828-21-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2828-24-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3000-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3000-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3000-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/3000-7-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3000-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3000-13-0x0000000001FE0000-0x0000000001FF0000-memory.dmp

Filesize
64KB

Download