faad2bc8e61b75e595a80ff2b6d150ff8b27187a8ba426cc1e5e38e193ab6d42

Resubmissions

07/08/2024, 00:23

240807-apla4avfnp 8

07/08/2024, 00:17

240807-aljm4aydpb 8

Analysis

max time kernel
41s
max time network
39s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07/08/2024, 00:17

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General

Target

Bootstrapper.exe
Size

795KB
MD5

365971e549352a15e150b60294ec2e57
SHA1

2932242b427e81b1b4ac8c11fb17793eae0939f7
SHA256

faad2bc8e61b75e595a80ff2b6d150ff8b27187a8ba426cc1e5e38e193ab6d42
SHA512

f7ba1353e880213a6bdf5bd1dfdfd42a0acf4066a540a502e8df8fec8eac7fb80b75aa52e68eca98be3f7701da48eb90758e5b94d72013d3dff05e0aaf27e938
SSDEEP

12288:GYa9sBhIBdCdbX1USoeQDj/VNpA+dZIznBpGTEy:Pa98hIBdjSoeQDj/VNpZdZIznBpg

Score

8^/10

discovery

Malware Config

Signatures

Downloads MZ/PE file

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	Bootstrapper.exe

Executes dropped EXE 1 IoCs

pid	Process
3752	BootstrapperV1.14.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
3	pastebin.com
4	pastebin.com

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1908	3752	WerFault.exe	87

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	Bootstrapper.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BootstrapperV1.14.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4876	Bootstrapper.exe
Token: SeDebugPrivilege	3752	BootstrapperV1.14.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4876 wrote to memory of 3752	4876	Bootstrapper.exe	87
PID 4876 wrote to memory of 3752	4876	Bootstrapper.exe	87
PID 4876 wrote to memory of 3752	4876	Bootstrapper.exe	87

C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe
"C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4876
- C:\Users\Admin\AppData\Local\Temp\BootstrapperV1.14.exe
  "C:\Users\Admin\AppData\Local\Temp\BootstrapperV1.14.exe" --oldBootstrapper "C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe" --isUpdate true
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3752
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3752 -s 1708
    3⤵
    - Program crash
    PID:1908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3752 -ip 3752
1⤵
PID:1708

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:3864

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\BootstrapperV1.14.exe

Filesize
796KB

MD5
3af8103c6e2ba160987b5b4e87b231d2

SHA1
b65c5f0351e1689b7d1e1e68e2e443176831378c

SHA256
66cd57c5830bb579d017a0a7b4924e03a4177ba40c82045100da383ea2144946

SHA512
fc7c3e1326fbaee32066e567384c18abf7e85cbfa489a48fa25e0bcfb79d8f3f8f7e4e9a61e6c6f2a1203e15682fd35ab8c3d4988298b837f2854b7c7791341a

Download Submit
memory/3752-18-0x0000000000B10000-0x0000000000BDE000-memory.dmp

Filesize
824KB

Download
memory/3752-19-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/3752-20-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/3752-21-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/4876-0-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/4876-1-0x0000000000B90000-0x0000000000C5E000-memory.dmp

Filesize
824KB

Download
memory/4876-2-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/4876-3-0x0000000006020000-0x0000000006042000-memory.dmp

Filesize
136KB

Download
memory/4876-4-0x0000000006050000-0x00000000063A4000-memory.dmp

Filesize
3.3MB

Download
memory/4876-16-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download