3c7cba979e374e51c857c6af5b0921f9346bacd26a78b96b911c1d09549eea56

Analysis

max time kernel
152s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
20-10-2022 06:52

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

3c7cba979e374e51c857c6af5b0921f9346bacd26a78b96b911c1d09549eea56.exe
Size

61KB
MD5

81803c497c3a15b189f068c6ea91e077
SHA1

1aa429494e07061ab79677476cd8292f5886238e
SHA256

3c7cba979e374e51c857c6af5b0921f9346bacd26a78b96b911c1d09549eea56
SHA512

eb0e295b800d11cee7c1d48df9d3fe6d31b475bfb17aada71d70f23ae86bbf84814b3d719f0ad3636d9e3c69667e57868234ff0e57d0b878aed1b10108c3d19d
SSDEEP

1536:1OPhlosUoAarDX1JJd7NkJqpft5IKVvig:1OPlfJJdlfzpVvj

Score

9^/10

upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 2 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0006000000022e0b-132.dat	acprotect
behavioral2/files/0x0006000000022e0b-133.dat	acprotect

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0006000000022e0b-132.dat	upx
behavioral2/files/0x0006000000022e0b-133.dat	upx
behavioral2/memory/4912-134-0x0000000002C50000-0x0000000002C62000-memory.dmp	upx

Loads dropped DLL 4 IoCs

pid	Process
4912	3c7cba979e374e51c857c6af5b0921f9346bacd26a78b96b911c1d09549eea56.exe
4912	3c7cba979e374e51c857c6af5b0921f9346bacd26a78b96b911c1d09549eea56.exe
4912	3c7cba979e374e51c857c6af5b0921f9346bacd26a78b96b911c1d09549eea56.exe
4912	3c7cba979e374e51c857c6af5b0921f9346bacd26a78b96b911c1d09549eea56.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\winrar\ico\taobao.tbico	3c7cba979e374e51c857c6af5b0921f9346bacd26a78b96b911c1d09549eea56.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.tbico	3c7cba979e374e51c857c6af5b0921f9346bacd26a78b96b911c1d09549eea56.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.tbico\ = "icofile"	3c7cba979e374e51c857c6af5b0921f9346bacd26a78b96b911c1d09549eea56.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mk3	3c7cba979e374e51c857c6af5b0921f9346bacd26a78b96b911c1d09549eea56.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mk3\ = "VBSFile"	3c7cba979e374e51c857c6af5b0921f9346bacd26a78b96b911c1d09549eea56.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4912 wrote to memory of 4248	4912	3c7cba979e374e51c857c6af5b0921f9346bacd26a78b96b911c1d09549eea56.exe	85
PID 4912 wrote to memory of 4248	4912	3c7cba979e374e51c857c6af5b0921f9346bacd26a78b96b911c1d09549eea56.exe	85
PID 4912 wrote to memory of 4248	4912	3c7cba979e374e51c857c6af5b0921f9346bacd26a78b96b911c1d09549eea56.exe	85

C:\Users\Admin\AppData\Local\Temp\3c7cba979e374e51c857c6af5b0921f9346bacd26a78b96b911c1d09549eea56.exe
"C:\Users\Admin\AppData\Local\Temp\3c7cba979e374e51c857c6af5b0921f9346bacd26a78b96b911c1d09549eea56.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4912
- C:\Windows\SysWOW64\wscript.exe
  wscript.exe /nologo "C:\Users\Admin\AppData\Local\Temp\2297.mk3"
  2⤵
  PID:4248

Network

MITRE ATT&CK Enterprise v6

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\nsxCD69.tmp\InetLoad.dll

Filesize
18KB

MD5
994669c5737b25c26642c94180e92fa2

SHA1
d8a1836914a446b0e06881ce1be8631554adafde

SHA256
bf01a1f272e0daf82df3407690b646e0ff6b2c562e36e47cf177eda71ccb6f6c

SHA512
d0ab7ca7f890ef9e59015c33e6b400a0a4d1ce0d24599537e09e845f4b953e3ecd44bf3e3cbe584f57c2948743e689ed67d2d40e6caf923bd630886e89c38563

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsxCD69.tmp\InetLoad.dll

Filesize
18KB

MD5
994669c5737b25c26642c94180e92fa2

SHA1
d8a1836914a446b0e06881ce1be8631554adafde

SHA256
bf01a1f272e0daf82df3407690b646e0ff6b2c562e36e47cf177eda71ccb6f6c

SHA512
d0ab7ca7f890ef9e59015c33e6b400a0a4d1ce0d24599537e09e845f4b953e3ecd44bf3e3cbe584f57c2948743e689ed67d2d40e6caf923bd630886e89c38563

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsxCD69.tmp\nsRandom.dll

Filesize
21KB

MD5
ab467b8dfaa660a0f0e5b26e28af5735

SHA1
596abd2c31eaff3479edf2069db1c155b59ce74d

SHA256
db267d9920395b4badc48de04df99dfd21d579480d103cae0f48e6578197ff73

SHA512
7d002dc203997b8a4d8ec20c92cd82848e29d746414f4a61265c76d4afb12c05bce826fc63f4d2bd3d527f38506c391855767d864c37584df11b5db9ca008301

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsxCD69.tmp\nsRandom.dll

Filesize
21KB

MD5
ab467b8dfaa660a0f0e5b26e28af5735

SHA1
596abd2c31eaff3479edf2069db1c155b59ce74d

SHA256
db267d9920395b4badc48de04df99dfd21d579480d103cae0f48e6578197ff73

SHA512
7d002dc203997b8a4d8ec20c92cd82848e29d746414f4a61265c76d4afb12c05bce826fc63f4d2bd3d527f38506c391855767d864c37584df11b5db9ca008301

Download Submit
memory/4912-134-0x0000000002C50000-0x0000000002C62000-memory.dmp

Filesize
72KB

Download
memory/4912-138-0x0000000002C50000-0x0000000002C62000-memory.dmp

Filesize
72KB

Download