a4e13d5ddfed2748925ccf8cb2a08cf03f992de943e195aa73411e1fd2efab80

General

Target

a4e13d5ddfed2748925ccf8cb2a08cf03f992de943e195aa73411e1fd2efab80.exe
Size

518KB
MD5

7c7f42431e94008eaf3e6857101792e4
SHA1

973497ad5d0725b431d1d9b3f2c8f2ef7c20382a
SHA256

a4e13d5ddfed2748925ccf8cb2a08cf03f992de943e195aa73411e1fd2efab80
SHA512

fa54bcd4394326c6e5c44841d31f29c0011ebb088b8d85d8d1b4054c6207a9dccc6b92e4e54c9574763cf06df1c521dee458aabaee7cc4ff40a5110e735d3b6c
SSDEEP

12288:ZOv5jKhsfoPA+yeVKUCUxP4C902bdRtJJPi2AAGXBvFwkmy:Zq5TfcdHj4fmbJ09ekx

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\bleacher

Filesize
104KB

MD5
e65f4e30f50b5d32a59d4cbff01b9947

SHA1
5ac6bc3af4a9ea2ba7e0b924eaeaef415f70745a

SHA256
a6dd914e154beff196c4c776934129ee855c00f320a36131ecb25111ff54ee03

SHA512
b4cf6f3393964161c2de04ed89af5569598b136213cfc9ce70b08a88afb1aecc8ba7e97ac4987b43f559750b71d76026ab3c012b054b95e26b944a06ff7e6568

Download Submit
C:\Users\Admin\AppData\Local\asset\underbalance.exe

Filesize
518KB

MD5
7c7f42431e94008eaf3e6857101792e4

SHA1
973497ad5d0725b431d1d9b3f2c8f2ef7c20382a

SHA256
a4e13d5ddfed2748925ccf8cb2a08cf03f992de943e195aa73411e1fd2efab80

SHA512
fa54bcd4394326c6e5c44841d31f29c0011ebb088b8d85d8d1b4054c6207a9dccc6b92e4e54c9574763cf06df1c521dee458aabaee7cc4ff40a5110e735d3b6c

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

Filesize
1.2MB

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

Filesize
4.0MB

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

Filesize
1.2MB

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

Filesize
1.2MB

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

Filesize
4.0MB

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

Filesize
1.2MB

Download

Analysis

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