4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a

Analysis

max time kernel
92s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 20:05

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General

Target

4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe
Size

760KB
MD5

4f86b982774c2a1dc3e4631c11604572
SHA1

cc20f1ee9baff48885334730056a69b530a81f3d
SHA256

4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a
SHA512

17d4e343ec44b22a98200e7d3689b618c5ad050b7dc481869ae354663dda9d4e95949040d3ef2a004c87177ded38591fd4b1b5267edee23bdb6bbbeea1430b41
SSDEEP

12288:no5GBHD297ujJxcmdXkmp9WrXOFXwG//tHCDBLO3EmiSRKQMMpge5eDq/qI:no50C97ujJfBHm8P/lCd6riubge5eu/d

Score

8^/10

upx

Malware Config

Signatures

UPX packed file 38 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4344-135-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-138-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-137-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-140-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-139-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-142-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-144-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-146-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-148-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-150-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-152-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-154-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-156-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-158-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-160-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-162-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-164-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-166-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-168-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-170-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-172-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-174-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-176-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-178-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-180-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/4344-181-0x00000000025B0000-0x00000000025ED000-memory.dmp	upx
behavioral2/memory/4344-184-0x00000000025B0000-0x00000000025ED000-memory.dmp	upx
behavioral2/memory/4344-183-0x00000000025B0000-0x00000000025ED000-memory.dmp	upx
behavioral2/memory/4344-185-0x00000000025B0000-0x00000000025ED000-memory.dmp	upx
behavioral2/memory/4344-186-0x00000000025B0000-0x00000000025ED000-memory.dmp	upx
behavioral2/memory/4344-188-0x00000000025B0000-0x00000000025ED000-memory.dmp	upx
behavioral2/memory/4344-190-0x00000000025B0000-0x00000000025ED000-memory.dmp	upx
behavioral2/memory/4344-192-0x00000000025B0000-0x00000000025ED000-memory.dmp	upx
behavioral2/memory/4344-194-0x00000000025B0000-0x00000000025ED000-memory.dmp	upx
behavioral2/memory/4344-196-0x00000000025B0000-0x00000000025ED000-memory.dmp	upx
behavioral2/memory/4344-273-0x00000000025B0000-0x00000000025ED000-memory.dmp	upx
behavioral2/memory/4344-274-0x0000000002710000-0x000000000274D000-memory.dmp	upx
behavioral2/memory/4344-276-0x0000000010000000-0x000000001003D000-memory.dmp	upx

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\rw.dll	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 13 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\Total\ = "63"	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\aedu.cn\Total = "63"	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\IESettingSync	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\aedu.cn	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\aedu.cn\NumberOfSubdomains = "1"	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DOMStorage\aedu.cn	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DOMStorage\home.aedu.cn	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\home.aedu.cn\ = "63"	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4344	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe
4344	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
4344	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe
4344	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe
4344	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe
4344	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe
4344	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe
4344	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe
4344	4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe

C:\Users\Admin\AppData\Local\Temp\4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe
"C:\Users\Admin\AppData\Local\Temp\4b3cb1df0dd0e802c00173210e497567004bb5c9f3b30e4f7bba09678f32c28a.exe"
1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:4344

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4344-133-0x0000000000400000-0x000000000060E000-memory.dmp

Filesize
2.1MB

Download
memory/4344-132-0x0000000000400000-0x000000000060E000-memory.dmp

Filesize
2.1MB

Download
memory/4344-134-0x0000000000400000-0x000000000060E000-memory.dmp

Filesize
2.1MB

Download
memory/4344-135-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-138-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-137-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-140-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-139-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-142-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-144-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-146-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-148-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-150-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-152-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-154-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-156-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-158-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-160-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-162-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-164-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-166-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-168-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-170-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-172-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-174-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-176-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-178-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-180-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4344-181-0x00000000025B0000-0x00000000025ED000-memory.dmp

Filesize
244KB

Download
memory/4344-184-0x00000000025B0000-0x00000000025ED000-memory.dmp

Filesize
244KB

Download
memory/4344-183-0x00000000025B0000-0x00000000025ED000-memory.dmp

Filesize
244KB

Download
memory/4344-185-0x00000000025B0000-0x00000000025ED000-memory.dmp

Filesize
244KB

Download
memory/4344-186-0x00000000025B0000-0x00000000025ED000-memory.dmp

Filesize
244KB

Download
memory/4344-188-0x00000000025B0000-0x00000000025ED000-memory.dmp

Filesize
244KB

Download
memory/4344-190-0x00000000025B0000-0x00000000025ED000-memory.dmp

Filesize
244KB

Download
memory/4344-192-0x00000000025B0000-0x00000000025ED000-memory.dmp

Filesize
244KB

Download
memory/4344-194-0x00000000025B0000-0x00000000025ED000-memory.dmp

Filesize
244KB

Download
memory/4344-196-0x00000000025B0000-0x00000000025ED000-memory.dmp

Filesize
244KB

Download
memory/4344-273-0x00000000025B0000-0x00000000025ED000-memory.dmp

Filesize
244KB

Download
memory/4344-274-0x0000000002710000-0x000000000274D000-memory.dmp

Filesize
244KB

Download
memory/4344-275-0x0000000000400000-0x000000000060E000-memory.dmp

Filesize
2.1MB

Download
memory/4344-276-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download