dcae6c1b8c24786dfbf27c92c0c94a9ab7984deb404a4d63702f0840b6a5683a

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
21/08/2023, 17:40

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General

Target

636fb24598fc1024b5af26d2685f5e61_cryptolocker_JC.exe
Size

113KB
MD5

636fb24598fc1024b5af26d2685f5e61
SHA1

937a379f49ee51a373c9e70baa05785113776f3f
SHA256

dcae6c1b8c24786dfbf27c92c0c94a9ab7984deb404a4d63702f0840b6a5683a
SHA512

130fc30ec59e03f6715aae7b49b28996136d733b58ad322abba421f23e44279d14c1856d293733e5bdacabb6090bbe29709ced7b9c28e1c9dd3b6734d1da0a4e
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjCGYQbN/PKwNgp+oxGz:T6a+rdOOtEvwDpjLzX

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2236	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2328	636fb24598fc1024b5af26d2685f5e61_cryptolocker_JC.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2328-55-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2328-68-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0008000000012028-65.dat	upx
behavioral1/memory/2236-70-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0008000000012028-69.dat	upx
behavioral1/files/0x0008000000012028-78.dat	upx
behavioral1/memory/2236-79-0x0000000000500000-0x0000000000510000-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 2328 wrote to memory of 2236	2328	636fb24598fc1024b5af26d2685f5e61_cryptolocker_JC.exe	28
PID 2328 wrote to memory of 2236	2328	636fb24598fc1024b5af26d2685f5e61_cryptolocker_JC.exe	28
PID 2328 wrote to memory of 2236	2328	636fb24598fc1024b5af26d2685f5e61_cryptolocker_JC.exe	28
PID 2328 wrote to memory of 2236	2328	636fb24598fc1024b5af26d2685f5e61_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\636fb24598fc1024b5af26d2685f5e61_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\636fb24598fc1024b5af26d2685f5e61_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2328
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2236

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
113KB

MD5
74b7bf6e693eacbb2ed2c185342d4b87

SHA1
2c11b7f0c8dc7100e3d8e33b3ab87d176be178a8

SHA256
f2865934337320b7f8b95d7316ffee8cf6803f403c239f3b118db5c101be8b54

SHA512
d956251885038f79e7d35490af170955b58ab7f1b2e1976c402db105d9f01a13e9d113831af7f32e963fa1ab56c4d2f36361295f9c3df1db40768de50a9fe70e

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

Filesize
113KB

MD5
74b7bf6e693eacbb2ed2c185342d4b87

SHA1
2c11b7f0c8dc7100e3d8e33b3ab87d176be178a8

SHA256
f2865934337320b7f8b95d7316ffee8cf6803f403c239f3b118db5c101be8b54

SHA512
d956251885038f79e7d35490af170955b58ab7f1b2e1976c402db105d9f01a13e9d113831af7f32e963fa1ab56c4d2f36361295f9c3df1db40768de50a9fe70e

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

Filesize
113KB

MD5
74b7bf6e693eacbb2ed2c185342d4b87

SHA1
2c11b7f0c8dc7100e3d8e33b3ab87d176be178a8

SHA256
f2865934337320b7f8b95d7316ffee8cf6803f403c239f3b118db5c101be8b54

SHA512
d956251885038f79e7d35490af170955b58ab7f1b2e1976c402db105d9f01a13e9d113831af7f32e963fa1ab56c4d2f36361295f9c3df1db40768de50a9fe70e

Download Submit
memory/2236-70-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2236-72-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2236-79-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2328-55-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2328-54-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2328-56-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2328-59-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2328-68-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download