9c7a22c95ca90addba3ce22ab932f4ab1cb091eaa1b88e4e62cd4dacbef6be36

Analysis

max time kernel
134s
max time network
144s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
23-08-2023 16:39

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General

Target

78b4f58a9e787ddd200b1631009785ca_cryptolocker_JC.exe
Size

112KB
MD5

78b4f58a9e787ddd200b1631009785ca
SHA1

127e9759a325f938f2c4a8220ecf653d319a4ed9
SHA256

9c7a22c95ca90addba3ce22ab932f4ab1cb091eaa1b88e4e62cd4dacbef6be36
SHA512

2274576caf2d6fe34b5c63d010aff06991223579e8deb72f1b73d3e16be48c700c0c05442b3345505d486250719d91da41353bdcb89d3e48cb6320cd14d63609
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjCGYQbN/PKwNgerarx:T6a+rdOOtEvwDpjLz4

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2564	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1132	78b4f58a9e787ddd200b1631009785ca_cryptolocker_JC.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1132-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0009000000012029-11.dat	upx
behavioral1/memory/1132-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2564-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0009000000012029-14.dat	upx
behavioral1/files/0x0009000000012029-25.dat	upx
behavioral1/memory/2564-26-0x0000000000500000-0x0000000000510000-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 1132 wrote to memory of 2564	1132	78b4f58a9e787ddd200b1631009785ca_cryptolocker_JC.exe	28
PID 1132 wrote to memory of 2564	1132	78b4f58a9e787ddd200b1631009785ca_cryptolocker_JC.exe	28
PID 1132 wrote to memory of 2564	1132	78b4f58a9e787ddd200b1631009785ca_cryptolocker_JC.exe	28
PID 1132 wrote to memory of 2564	1132	78b4f58a9e787ddd200b1631009785ca_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\78b4f58a9e787ddd200b1631009785ca_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\78b4f58a9e787ddd200b1631009785ca_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1132
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2564

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\asih.exe

Filesize
112KB

MD5
a306718a0f8ad50faac1062d78bc170a

SHA1
8c0b45763932c1bd3b0e79c8cbaa923103c729e3

SHA256
db7d485d794478347d4cf076925614bec4a369e39a7e0be2ee4159d3669a26fb

SHA512
0a2f48e73a81ea8169fdda1ff217c59d99737910502e31ae6436ad33094e490adcdb9ad7945c3a7135114d26ccf82b858b3b180610215f98d426fa5e5ef07882

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

Filesize
112KB

MD5
a306718a0f8ad50faac1062d78bc170a

SHA1
8c0b45763932c1bd3b0e79c8cbaa923103c729e3

SHA256
db7d485d794478347d4cf076925614bec4a369e39a7e0be2ee4159d3669a26fb

SHA512
0a2f48e73a81ea8169fdda1ff217c59d99737910502e31ae6436ad33094e490adcdb9ad7945c3a7135114d26ccf82b858b3b180610215f98d426fa5e5ef07882

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

Filesize
112KB

MD5
a306718a0f8ad50faac1062d78bc170a

SHA1
8c0b45763932c1bd3b0e79c8cbaa923103c729e3

SHA256
db7d485d794478347d4cf076925614bec4a369e39a7e0be2ee4159d3669a26fb

SHA512
0a2f48e73a81ea8169fdda1ff217c59d99737910502e31ae6436ad33094e490adcdb9ad7945c3a7135114d26ccf82b858b3b180610215f98d426fa5e5ef07882

Download Submit
memory/1132-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1132-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1132-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1132-3-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1132-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2564-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2564-19-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2564-18-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2564-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download