17e243752fb0b17fb76b709d69d9ef40981e6d7c2c12b0b778d7563290db3436

Analysis

max time kernel
91s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
21-10-2022 04:59

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General

Target

17e243752fb0b17fb76b709d69d9ef40981e6d7c2c12b0b778d7563290db3436.exe
Size

58KB
MD5

4ce6ff27bff04f0a212f7e670ae5c661
SHA1

d2fd6c47e29e6cf4f52897e96692b690f760b73d
SHA256

17e243752fb0b17fb76b709d69d9ef40981e6d7c2c12b0b778d7563290db3436
SHA512

4b7a96e7e00b6545eff7ad4799ddf70b7866b81c4c3c57b945393d5f9cb11fd7658be74f1f3ccfa31bcadd30df0f138aff1ac8b2be292830d926f61243f1ffff
SSDEEP

1536:u3cpyORJLuB4P4AJJJBaOQiYdLnd6Ihy/xMl7XvZe/M:u3c1fP4AJJO9/Hs5qzZcM

Score

9^/10

upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 3 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0003000000022de9-132.dat	acprotect
behavioral2/files/0x0003000000022de9-133.dat	acprotect
behavioral2/memory/5044-134-0x0000000002380000-0x0000000002392000-memory.dmp	acprotect

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0003000000022de9-132.dat	upx
behavioral2/files/0x0003000000022de9-133.dat	upx
behavioral2/memory/5044-134-0x0000000002380000-0x0000000002392000-memory.dmp	upx

Loads dropped DLL 4 IoCs

pid	Process
5044	17e243752fb0b17fb76b709d69d9ef40981e6d7c2c12b0b778d7563290db3436.exe
5044	17e243752fb0b17fb76b709d69d9ef40981e6d7c2c12b0b778d7563290db3436.exe
5044	17e243752fb0b17fb76b709d69d9ef40981e6d7c2c12b0b778d7563290db3436.exe
5044	17e243752fb0b17fb76b709d69d9ef40981e6d7c2c12b0b778d7563290db3436.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\winrar\ico\taobao.tbico	17e243752fb0b17fb76b709d69d9ef40981e6d7c2c12b0b778d7563290db3436.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\.nco	17e243752fb0b17fb76b709d69d9ef40981e6d7c2c12b0b778d7563290db3436.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.nco\ = "VBSFile"	17e243752fb0b17fb76b709d69d9ef40981e6d7c2c12b0b778d7563290db3436.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.tbico	17e243752fb0b17fb76b709d69d9ef40981e6d7c2c12b0b778d7563290db3436.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.tbico\ = "icofile"	17e243752fb0b17fb76b709d69d9ef40981e6d7c2c12b0b778d7563290db3436.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5044 wrote to memory of 2700	5044	17e243752fb0b17fb76b709d69d9ef40981e6d7c2c12b0b778d7563290db3436.exe	82
PID 5044 wrote to memory of 2700	5044	17e243752fb0b17fb76b709d69d9ef40981e6d7c2c12b0b778d7563290db3436.exe	82
PID 5044 wrote to memory of 2700	5044	17e243752fb0b17fb76b709d69d9ef40981e6d7c2c12b0b778d7563290db3436.exe	82

C:\Users\Admin\AppData\Local\Temp\17e243752fb0b17fb76b709d69d9ef40981e6d7c2c12b0b778d7563290db3436.exe
"C:\Users\Admin\AppData\Local\Temp\17e243752fb0b17fb76b709d69d9ef40981e6d7c2c12b0b778d7563290db3436.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:5044
- C:\Windows\SysWOW64\wscript.exe
  wscript.exe /nologo "C:\Users\Admin\AppData\Local\Temp\3542.nco"
  2⤵
  PID:2700

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsxCD1B.tmp\InetLoad.dll

Filesize
18KB

MD5
994669c5737b25c26642c94180e92fa2

SHA1
d8a1836914a446b0e06881ce1be8631554adafde

SHA256
bf01a1f272e0daf82df3407690b646e0ff6b2c562e36e47cf177eda71ccb6f6c

SHA512
d0ab7ca7f890ef9e59015c33e6b400a0a4d1ce0d24599537e09e845f4b953e3ecd44bf3e3cbe584f57c2948743e689ed67d2d40e6caf923bd630886e89c38563

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsxCD1B.tmp\InetLoad.dll

Filesize
18KB

MD5
994669c5737b25c26642c94180e92fa2

SHA1
d8a1836914a446b0e06881ce1be8631554adafde

SHA256
bf01a1f272e0daf82df3407690b646e0ff6b2c562e36e47cf177eda71ccb6f6c

SHA512
d0ab7ca7f890ef9e59015c33e6b400a0a4d1ce0d24599537e09e845f4b953e3ecd44bf3e3cbe584f57c2948743e689ed67d2d40e6caf923bd630886e89c38563

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsxCD1B.tmp\nsRandom.dll

Filesize
21KB

MD5
ab467b8dfaa660a0f0e5b26e28af5735

SHA1
596abd2c31eaff3479edf2069db1c155b59ce74d

SHA256
db267d9920395b4badc48de04df99dfd21d579480d103cae0f48e6578197ff73

SHA512
7d002dc203997b8a4d8ec20c92cd82848e29d746414f4a61265c76d4afb12c05bce826fc63f4d2bd3d527f38506c391855767d864c37584df11b5db9ca008301

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsxCD1B.tmp\nsRandom.dll

Filesize
21KB

MD5
ab467b8dfaa660a0f0e5b26e28af5735

SHA1
596abd2c31eaff3479edf2069db1c155b59ce74d

SHA256
db267d9920395b4badc48de04df99dfd21d579480d103cae0f48e6578197ff73

SHA512
7d002dc203997b8a4d8ec20c92cd82848e29d746414f4a61265c76d4afb12c05bce826fc63f4d2bd3d527f38506c391855767d864c37584df11b5db9ca008301

Download Submit
memory/2700-138-0x0000000000000000-mapping.dmp

Download
memory/5044-135-0x0000000002380000-0x0000000002392000-memory.dmp

Filesize
72KB

Download
memory/5044-134-0x0000000002380000-0x0000000002392000-memory.dmp

Filesize
72KB

Download