stealc | cf85f73c881fbb88f710ccd69868edb3db1acda2f51601d294e6a9c8a8bbd787

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-11-2024 01:06

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General

Target

1ab965f302ef435f16539222d7c6353226da62d73265f582fa64d3def68f7557.exe
Size

2.1MB
MD5

2005f497ba2dbba05037891d33b62cfa
SHA1

be15880e3b0577a3b6af633d927c1154edb4b9b4
SHA256

1ab965f302ef435f16539222d7c6353226da62d73265f582fa64d3def68f7557
SHA512

a3b1a6a43cb7e7e54de4cee4478d649b3233d0b077658b938e53bf29d42c7a2a9b0a91444423bffcb62cdbce8129bad116034f2f0265ed6fa7016323ba43a125
SSDEEP

49152:CgEVxNGE6YDrvskMQzsJJDAZR0JTF5iIFbBb5A71Dk:CgObGEfDrk/Jp4wxW71Dk

Score

10^/10

stealc tale discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

tale

http://185.215.113.206

Attributes

url_path
/6c4adf523b719729.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Stealc family
stealc

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	1ab965f302ef435f16539222d7c6353226da62d73265f582fa64d3def68f7557.exe

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	1ab965f302ef435f16539222d7c6353226da62d73265f582fa64d3def68f7557.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	1ab965f302ef435f16539222d7c6353226da62d73265f582fa64d3def68f7557.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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Wine	1ab965f302ef435f16539222d7c6353226da62d73265f582fa64d3def68f7557.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2372	1ab965f302ef435f16539222d7c6353226da62d73265f582fa64d3def68f7557.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	1ab965f302ef435f16539222d7c6353226da62d73265f582fa64d3def68f7557.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2372	1ab965f302ef435f16539222d7c6353226da62d73265f582fa64d3def68f7557.exe

C:\Users\Admin\AppData\Local\Temp\1ab965f302ef435f16539222d7c6353226da62d73265f582fa64d3def68f7557.exe
"C:\Users\Admin\AppData\Local\Temp\1ab965f302ef435f16539222d7c6353226da62d73265f582fa64d3def68f7557.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2372

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2372-0-0x0000000001120000-0x000000000185A000-memory.dmp

Filesize
7.2MB

Download
memory/2372-1-0x0000000077C90000-0x0000000077C92000-memory.dmp

Filesize
8KB

Download
memory/2372-3-0x0000000001120000-0x000000000185A000-memory.dmp

Filesize
7.2MB

Download
memory/2372-2-0x0000000001121000-0x0000000001189000-memory.dmp

Filesize
416KB

Download
memory/2372-5-0x0000000001120000-0x000000000185A000-memory.dmp

Filesize
7.2MB

Download