bde91e55bb88bae608a621d5c7b6966973f71ce5480b44e267c811e9d247c685

General

Target

bde91e55bb88bae608a621d5c7b6966973f71ce5480b44e267c811e9d247c685.exe
Size

180KB
MD5

31e4ab38ed835ea9da4eb92058656530
SHA1

892bed2fb9055f6b45808bc06c3ed2ab649a1369
SHA256

bde91e55bb88bae608a621d5c7b6966973f71ce5480b44e267c811e9d247c685
SHA512

61ee3c9665dedb6b40351463a50f074fd69b20db16dc55bee39d8db29534bb6e0449aa7fd4b20fafcc7b6059224de8a4c9b0e71b599570b31c4b103c8285613b
SSDEEP

3072:JyFdVAXY71idPAaWELGzMshNXTDFE+7jF6XTCGi:JyFzAY+oXqFshNTDT756XTW

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

bde91e55bb88bae608a621d5c7b6966973f71ce5480b44e267c811e9d247c685.exebeosua.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	bde91e55bb88bae608a621d5c7b6966973f71ce5480b44e267c811e9d247c685.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	beosua.exe

Executes dropped EXE 1 IoCs

Processes:

beosua.exe

pid process

3472 beosua.exe

pid	process
3472	beosua.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

bde91e55bb88bae608a621d5c7b6966973f71ce5480b44e267c811e9d247c685.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	bde91e55bb88bae608a621d5c7b6966973f71ce5480b44e267c811e9d247c685.exe

Adds Run key to start application 2 TTPs 28 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

bde91e55bb88bae608a621d5c7b6966973f71ce5480b44e267c811e9d247c685.exebeosua.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\	bde91e55bb88bae608a621d5c7b6966973f71ce5480b44e267c811e9d247c685.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /w"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /a"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /x"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /d"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /c"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /q"	beosua.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /v"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /n"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /r"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /y"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /k"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /h"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /p"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /s"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /t"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /e"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /g"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /z"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /j"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /o"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /l"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /x"	bde91e55bb88bae608a621d5c7b6966973f71ce5480b44e267c811e9d247c685.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /i"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /b"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /m"	beosua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beosua = "C:\\Users\\Admin\\beosua.exe /u"	beosua.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

bde91e55bb88bae608a621d5c7b6966973f71ce5480b44e267c811e9d247c685.exebeosua.exe

pid	process
4976	bde91e55bb88bae608a621d5c7b6966973f71ce5480b44e267c811e9d247c685.exe
4976	bde91e55bb88bae608a621d5c7b6966973f71ce5480b44e267c811e9d247c685.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe
3472	beosua.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

bde91e55bb88bae608a621d5c7b6966973f71ce5480b44e267c811e9d247c685.exebeosua.exe

pid process

4976 bde91e55bb88bae608a621d5c7b6966973f71ce5480b44e267c811e9d247c685.exe
3472 beosua.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

bde91e55bb88bae608a621d5c7b6966973f71ce5480b44e267c811e9d247c685.exe

description	pid	process	target process
PID 4976 wrote to memory of 3472	4976	bde91e55bb88bae608a621d5c7b6966973f71ce5480b44e267c811e9d247c685.exe	beosua.exe
PID 4976 wrote to memory of 3472	4976	bde91e55bb88bae608a621d5c7b6966973f71ce5480b44e267c811e9d247c685.exe	beosua.exe
PID 4976 wrote to memory of 3472	4976	bde91e55bb88bae608a621d5c7b6966973f71ce5480b44e267c811e9d247c685.exe	beosua.exe

C:\Users\Admin\AppData\Local\Temp\bde91e55bb88bae608a621d5c7b6966973f71ce5480b44e267c811e9d247c685.exe
"C:\Users\Admin\AppData\Local\Temp\bde91e55bb88bae608a621d5c7b6966973f71ce5480b44e267c811e9d247c685.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4976

C:\Users\Admin\beosua.exe
"C:\Users\Admin\beosua.exe"
2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:3472

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\beosua.exe

Filesize
180KB

MD5
f40ab114971ed7b2da0cde6f9a727e70

SHA1
bf77b819b91f62e556f66e2ce9cbc111db05593e

SHA256
83fe4712300cd06323052dde48eab74cf8fb0807e5cab58fcc8de5e4ee1d6a3e

SHA512
cd09e2525d55957844dd311f5acdf2d5a073ce691d1eb4afc512e94baf353a4d6810f364980e2dbf36f9e94e4a12a00884d89e45ef39382b555ba7fb720bd315

Download Submit
C:\Users\Admin\beosua.exe

Filesize
180KB

MD5
f40ab114971ed7b2da0cde6f9a727e70

SHA1
bf77b819b91f62e556f66e2ce9cbc111db05593e

SHA256
83fe4712300cd06323052dde48eab74cf8fb0807e5cab58fcc8de5e4ee1d6a3e

SHA512
cd09e2525d55957844dd311f5acdf2d5a073ce691d1eb4afc512e94baf353a4d6810f364980e2dbf36f9e94e4a12a00884d89e45ef39382b555ba7fb720bd315

Download Submit
memory/3472-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads