stealc | 1550fd6b2a31385d0bd5e363129eecb804368c71b705f2396d9496fe4f01eb90

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17/02/2025, 06:06

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General

Target

1550fd6b2a31385d0bd5e363129eecb804368c71b705f2396d9496fe4f01eb90N.exe
Size

1.7MB
MD5

43da466ae4cc3c25a47476ae10d16750
SHA1

1ecfd009e8b0e3eb8a493abd13f6400393763295
SHA256

1550fd6b2a31385d0bd5e363129eecb804368c71b705f2396d9496fe4f01eb90
SHA512

6e1e98003d95100d8692c9fe601f005af64dca1c10fb3092c5eba2c39b17bd42557c540a0098b6bbc3b2f26e17871fff7f18d7d8e98ad7d9d275f24aa3b36d3f
SSDEEP

24576:DNSyXH4MW7rCDZZEgSQjH/Z5ic6iO1eroL2PZ8FudQt+UvWw9vWs2o412GNs/1Lg:zYBCDZZWu6n1NEW+eRl4R+tL5zUKqro

Score

10^/10

stealc reno defense_evasion discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

reno

http://185.215.113.115

Attributes

url_path
/c4becf79229cb002.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

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	1550fd6b2a31385d0bd5e363129eecb804368c71b705f2396d9496fe4f01eb90N.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	1550fd6b2a31385d0bd5e363129eecb804368c71b705f2396d9496fe4f01eb90N.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	1550fd6b2a31385d0bd5e363129eecb804368c71b705f2396d9496fe4f01eb90N.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.

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Wine	1550fd6b2a31385d0bd5e363129eecb804368c71b705f2396d9496fe4f01eb90N.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2124	1550fd6b2a31385d0bd5e363129eecb804368c71b705f2396d9496fe4f01eb90N.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	1550fd6b2a31385d0bd5e363129eecb804368c71b705f2396d9496fe4f01eb90N.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2124	1550fd6b2a31385d0bd5e363129eecb804368c71b705f2396d9496fe4f01eb90N.exe

C:\Users\Admin\AppData\Local\Temp\1550fd6b2a31385d0bd5e363129eecb804368c71b705f2396d9496fe4f01eb90N.exe
"C:\Users\Admin\AppData\Local\Temp\1550fd6b2a31385d0bd5e363129eecb804368c71b705f2396d9496fe4f01eb90N.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:2124

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

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Downloads

memory/2124-0-0x0000000000280000-0x0000000000925000-memory.dmp

Filesize
6.6MB

Download
memory/2124-1-0x0000000077BE0000-0x0000000077BE2000-memory.dmp

Filesize
8KB

Download
memory/2124-2-0x0000000000281000-0x0000000000298000-memory.dmp

Filesize
92KB

Download
memory/2124-3-0x0000000000280000-0x0000000000925000-memory.dmp

Filesize
6.6MB

Download
memory/2124-4-0x0000000000280000-0x0000000000925000-memory.dmp

Filesize
6.6MB

Download
memory/2124-5-0x0000000000280000-0x0000000000925000-memory.dmp

Filesize
6.6MB

Download
memory/2124-6-0x0000000000280000-0x0000000000925000-memory.dmp

Filesize
6.6MB

Download
memory/2124-7-0x0000000000280000-0x0000000000925000-memory.dmp

Filesize
6.6MB

Download