a4e13d5ddfed2748925ccf8cb2a08cf03f992de943e195aa73411e1fd2efab80

General

Target
a4e13d5ddfed2748925ccf8cb2a08cf03f992de943e195aa73411e1fd2efab80.exe
Size 518KB
Sample241120-dssfcsyhrf
SHA256 a4e13d5ddfed2748925ccf8cb2a08cf03f992de943e195aa73411e1fd2efab80
MD5 7c7f42431e94008eaf3e6857101792e4
SHA1 973497ad5d0725b431d1d9b3f2c8f2ef7c20382a
SHA512 fa54bcd4394326c6e5c44841d31f29c0011ebb088b8d85d8d1b4054c6207a9dccc6b92e4e54c9574763cf06df1c521dee458aabaee7cc4ff40a5110e735d3b6c
SSDEEP 12288:ZOv5jKhsfoPA+yeVKUCUxP4C902bdRtJJPi2AAGXBvFwkmy:Zq5TfcdHj4fmbJ09ekx
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

Malware Config

Signatures

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\underbalance.vbs	underbalance.exe

Executes dropped EXE 1 IoCs

pid	Process
552	underbalance.exe

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/3972-14-0x00000000008A0000-0x00000000009D5000-memory.dmp	autoit_exe
behavioral2/memory/552-24-0x0000000000CF0000-0x0000000000E25000-memory.dmp	autoit_exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3972-0-0x00000000008A0000-0x00000000009D5000-memory.dmp	upx
behavioral2/files/0x0002000000022b13-10.dat	upx
behavioral2/memory/552-11-0x0000000000CF0000-0x0000000000E25000-memory.dmp	upx
behavioral2/memory/3972-14-0x00000000008A0000-0x00000000009D5000-memory.dmp	upx
behavioral2/memory/552-24-0x0000000000CF0000-0x0000000000E25000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3344	552	WerFault.exe	86

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a4e13d5ddfed2748925ccf8cb2a08cf03f992de943e195aa73411e1fd2efab80.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	underbalance.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
552	underbalance.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
3972	a4e13d5ddfed2748925ccf8cb2a08cf03f992de943e195aa73411e1fd2efab80.exe
3972	a4e13d5ddfed2748925ccf8cb2a08cf03f992de943e195aa73411e1fd2efab80.exe
552	underbalance.exe
552	underbalance.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
3972	a4e13d5ddfed2748925ccf8cb2a08cf03f992de943e195aa73411e1fd2efab80.exe
3972	a4e13d5ddfed2748925ccf8cb2a08cf03f992de943e195aa73411e1fd2efab80.exe
552	underbalance.exe
552	underbalance.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3972 wrote to memory of 552	3972	a4e13d5ddfed2748925ccf8cb2a08cf03f992de943e195aa73411e1fd2efab80.exe	86
PID 3972 wrote to memory of 552	3972	a4e13d5ddfed2748925ccf8cb2a08cf03f992de943e195aa73411e1fd2efab80.exe	86
PID 3972 wrote to memory of 552	3972	a4e13d5ddfed2748925ccf8cb2a08cf03f992de943e195aa73411e1fd2efab80.exe	86
PID 552 wrote to memory of 1676	552	underbalance.exe	89
PID 552 wrote to memory of 1676	552	underbalance.exe	89
PID 552 wrote to memory of 1676	552	underbalance.exe	89

C:\Users\Admin\AppData\Local\Temp\a4e13d5ddfed2748925ccf8cb2a08cf03f992de943e195aa73411e1fd2efab80.exe
"C:\Users\Admin\AppData\Local\Temp\a4e13d5ddfed2748925ccf8cb2a08cf03f992de943e195aa73411e1fd2efab80.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3972
- C:\Users\Admin\AppData\Local\asset\underbalance.exe
  "C:\Users\Admin\AppData\Local\Temp\a4e13d5ddfed2748925ccf8cb2a08cf03f992de943e195aa73411e1fd2efab80.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:552
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\a4e13d5ddfed2748925ccf8cb2a08cf03f992de943e195aa73411e1fd2efab80.exe"
    3⤵
    PID:1676
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 552 -s 724
    3⤵
    - Program crash
    PID:3344

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 552 -ip 552
1⤵
PID:5072

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

bleacher

Path C:\Users\Admin\AppData\Local\Temp\bleacher
Size 104KB
SHA256 a6dd914e154beff196c4c776934129ee855c00f320a36131ecb25111ff54ee03
MD5 e65f4e30f50b5d32a59d4cbff01b9947
SHA1 5ac6bc3af4a9ea2ba7e0b924eaeaef415f70745a
SHA512 b4cf6f3393964161c2de04ed89af5569598b136213cfc9ce70b08a88afb1aecc8ba7e97ac4987b43f559750b71d76026ab3c012b054b95e26b944a06ff7e6568
SSDEEP 3072:TzsnKDjwTxwrnoLTYH+oC25jMp51ues++:Mn+jw+rnMTYHNLC1uLd
MD5 SHA1 SHA512 SSDEEP

Submit Download

underbalance.exe

Path C:\Users\Admin\AppData\Local\asset\underbalance.exe
Size 518KB
SHA256 a4e13d5ddfed2748925ccf8cb2a08cf03f992de943e195aa73411e1fd2efab80
MD5 7c7f42431e94008eaf3e6857101792e4
SHA1 973497ad5d0725b431d1d9b3f2c8f2ef7c20382a
SHA512 fa54bcd4394326c6e5c44841d31f29c0011ebb088b8d85d8d1b4054c6207a9dccc6b92e4e54c9574763cf06df1c521dee458aabaee7cc4ff40a5110e735d3b6c
SSDEEP 12288:ZOv5jKhsfoPA+yeVKUCUxP4C902bdRtJJPi2AAGXBvFwkmy:Zq5TfcdHj4fmbJ09ekx
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/552-11-0x0000000000CF0000-0x0000000000E25000-memory.dmp

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memory/552-22-0x0000000000E80000-0x0000000001280000-memory.dmp

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memory/552-24-0x0000000000CF0000-0x0000000000E25000-memory.dmp

Download

memory/3972-0-0x00000000008A0000-0x00000000009D5000-memory.dmp

Download

memory/3972-7-0x0000000001060000-0x0000000001460000-memory.dmp

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memory/3972-14-0x00000000008A0000-0x00000000009D5000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads