625eac600c4ff3b58db90db8fd77debd398421f9880ee13664f38dad3b6a413f

Analysis

max time kernel
0s
max time network
147s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
09/01/2024, 06:47

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General

Target

2024-01-08_c7b1282b0e0b88a730a0017f40fc7e11_cryptolocker.exe
Size

90KB
MD5

c7b1282b0e0b88a730a0017f40fc7e11
SHA1

17158a64c95f0011cee2e1f75e1bcfdaa2364da1
SHA256

625eac600c4ff3b58db90db8fd77debd398421f9880ee13664f38dad3b6a413f
SHA512

b35a768d6b2966ea5cf2242bce1fd822792f9466b486e1fae2a2f53e812daff052d1086f7d1dcba9b9dc074d0a077a5df78d29d83b29a005ad8683a79f530426
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjgx/V:zCsanOtEvwDpjBV

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2220	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1652	2024-01-08_c7b1282b0e0b88a730a0017f40fc7e11_cryptolocker.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x000e000000012670-25.dat	upx
behavioral1/memory/2220-22-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000e000000012670-15.dat	upx
behavioral1/memory/1652-13-0x0000000000600000-0x0000000000610000-memory.dmp	upx
behavioral1/files/0x000e000000012670-11.dat	upx
behavioral1/memory/1652-8-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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 1652 wrote to memory of 2220	1652	2024-01-08_c7b1282b0e0b88a730a0017f40fc7e11_cryptolocker.exe	14
PID 1652 wrote to memory of 2220	1652	2024-01-08_c7b1282b0e0b88a730a0017f40fc7e11_cryptolocker.exe	14
PID 1652 wrote to memory of 2220	1652	2024-01-08_c7b1282b0e0b88a730a0017f40fc7e11_cryptolocker.exe	14
PID 1652 wrote to memory of 2220	1652	2024-01-08_c7b1282b0e0b88a730a0017f40fc7e11_cryptolocker.exe	14

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
1⤵
- Executes dropped EXE
PID:2220

C:\Users\Admin\AppData\Local\Temp\2024-01-08_c7b1282b0e0b88a730a0017f40fc7e11_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-08_c7b1282b0e0b88a730a0017f40fc7e11_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1652

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

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

Filesize
13KB

MD5
9a5b0d47429f3159314beb23d9e76a44

SHA1
96d37a21f0d7f3676268a86bbb52e71e897dbc9e

SHA256
c6e12361fe48bca90dbc1b1587f82fcd0dd5239ea811d2458edccbec5af2de4a

SHA512
5999b5c572d24bac561f93667dbfd4cb38c45ac7f98b8fa32c53df834cc7741dfd025ef7036e69f7b87719a180d038e42fc9c6016b703412090eec8c18142c32

Download Submit
C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
91KB

MD5
78c975ccd86328bbd155d5a1eabc9822

SHA1
7addd91acbe0e3fdf0d601ef87c374f261d6dc78

SHA256
970d10cbedb940b36ca87b66e9efbf902f2a0a247efc4875c839abd893dab1dc

SHA512
e8dc084d7685d37a87050dbccc3b0297aceb99efcc8f3f3bd1e2ca07abfe1729afe1b779262856852599936a0acd8a9792b44aa93019663315764dd5873aa242

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

Filesize
33KB

MD5
5f5d1b05b3e9852422937a74a7a7b4fb

SHA1
105f0c173fe5eea2722c9e0ec8eaa7379fa66f6d

SHA256
cbcf95e6e2abf90b0b368fcae69f5b5f8f0d1e5827975ea81424847d82258a5e

SHA512
b82f8cb3401e606c5492012cecb2d59a01adbf1b3d4db95d7cef0dd11b0794aa12c5f03c3691b40f4d33d70dca57b572f65d9e74c87d2debaeebc6a1df38bc12

Download Submit
memory/1652-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1652-13-0x0000000000600000-0x0000000000610000-memory.dmp

Filesize
64KB

Download
memory/1652-8-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1652-1-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/1652-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2220-17-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2220-20-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2220-22-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download