632315695bf3d61c6249ddf215df529aa5459840e1ad75a388c6af06f7acc99c

General

Target

build.exe
Size

3.7MB
MD5

3f6e8330d2fee900c0f62733dd93d9d0
SHA1

3ba73e5b26aa98a99c5ed5fc98807e708c259ff9
SHA256

632315695bf3d61c6249ddf215df529aa5459840e1ad75a388c6af06f7acc99c
SHA512

4e219292e3cfaa834fe4a80219096af1d34d49a844bba7777d8b0d3eb0ed2cbb21a9f4cfc9c4cc140d81422595d0dce0fec8066e3303fafb777123709a9e8c4e

Score

9^/10

spyware evasion

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

build.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	build.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	build.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

build.exe

description ioc process

Key opened \REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Wine build.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

build.exe

pid process

500 build.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2540 500 WerFault.exe build.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Wine	build.exe

pid	pid_target	process	target process
2540	500	WerFault.exe	build.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

Processes:

build.exeWerFault.exe

pid	process
500	build.exe
500	build.exe
500	build.exe
2540	WerFault.exe
2540	WerFault.exe
2540	WerFault.exe
2540	WerFault.exe
2540	WerFault.exe
2540	WerFault.exe
2540	WerFault.exe
2540	WerFault.exe
2540	WerFault.exe
2540	WerFault.exe
2540	WerFault.exe
2540	WerFault.exe
2540	WerFault.exe
2540	WerFault.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

build.exeWerFault.exe

description	pid	process
Token: SeDebugPrivilege	500	build.exe
Token: SeRestorePrivilege	2540	WerFault.exe
Token: SeBackupPrivilege	2540	WerFault.exe
Token: SeDebugPrivilege	2540	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\build.exe
"C:\Users\Admin\AppData\Local\Temp\build.exe"
1⤵
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:500

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 500 -s 1480
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2540

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

3

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

memory/500-0-0x0000000004970000-0x0000000004971000-memory.dmp

Filesize
4KB

Download
memory/500-1-0x0000000005170000-0x0000000005171000-memory.dmp

Filesize
4KB

Download
memory/500-2-0x0000000073B80000-0x000000007426E000-memory.dmp

Filesize
6.9MB

Download
memory/500-3-0x0000000000A70000-0x0000000000A71000-memory.dmp

Filesize
4KB

Download
memory/500-5-0x0000000006E90000-0x0000000006E91000-memory.dmp

Filesize
4KB

Download
memory/500-6-0x00000000077B0000-0x00000000077B1000-memory.dmp

Filesize
4KB

Download
memory/500-7-0x0000000007B70000-0x0000000007B71000-memory.dmp

Filesize
4KB

Download
memory/500-8-0x0000000008110000-0x0000000008111000-memory.dmp

Filesize
4KB

Download
memory/2540-9-0x0000000004E10000-0x0000000004E11000-memory.dmp

Filesize
4KB

Download
memory/2540-10-0x0000000004E10000-0x0000000004E11000-memory.dmp

Filesize
4KB

Download
memory/2540-12-0x0000000005210000-0x0000000005211000-memory.dmp

Filesize
4KB

Download
memory/2540-13-0x0000000005700000-0x0000000005701000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads