stealc | 99dfe8a4454f28c944e3c749150aecdaa97e19bcc5a9cf644a509b7eb1d4e50f

General

Target

99dfe8a4454f28c944e3c749150aecdaa97e19bcc5a9cf644a509b7eb1d4e50f.exe
Size

4.0MB
MD5

919db35f2bf4dad6dd23e16b68dbb205
SHA1

97a493eb8ebcac4fa8f61c357365d443c72e40dc
SHA256

99dfe8a4454f28c944e3c749150aecdaa97e19bcc5a9cf644a509b7eb1d4e50f
SHA512

efa3e69c8c3e6b1af82ae4a6c89412fbcc4d21eaf61349c235810fef4790b5b6f7373c1ca0adb2ca7efcd2ea61635968f9d2237802422cf6046039aab27fa05e
SSDEEP

98304:z8Ho3wEF+ZSxV4CQrRZIfIM8R6nhYufLX6CL2VeUs:z8IqRSxi6dLqi

Score

10^/10

stealc default evasion stealer themida trojan

Malware Config

Extracted

Family

stealc

Botnet

default

C2

http://85.28.47.4

Attributes

url_path
/920475a59bac849d.php

Signatures

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

Detects executables packed with Themida 11 IoCs

resource	yara_rule
behavioral1/memory/2980-0-0x00000000002C0000-0x00000000008E5000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2980-3-0x00000000002C0000-0x00000000008E5000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2980-2-0x00000000002C0000-0x00000000008E5000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2980-5-0x00000000002C0000-0x00000000008E5000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2980-6-0x00000000002C0000-0x00000000008E5000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2980-4-0x00000000002C0000-0x00000000008E5000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2980-1-0x00000000002C0000-0x00000000008E5000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2980-8-0x00000000002C0000-0x00000000008E5000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2980-12-0x00000000002C0000-0x00000000008E5000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2980-16-0x00000000002C0000-0x00000000008E5000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2980-20-0x00000000002C0000-0x00000000008E5000-memory.dmp	INDICATOR_EXE_Packed_Themida

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__	99dfe8a4454f28c944e3c749150aecdaa97e19bcc5a9cf644a509b7eb1d4e50f.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	99dfe8a4454f28c944e3c749150aecdaa97e19bcc5a9cf644a509b7eb1d4e50f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	99dfe8a4454f28c944e3c749150aecdaa97e19bcc5a9cf644a509b7eb1d4e50f.exe

Themida packer 11 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/2980-0-0x00000000002C0000-0x00000000008E5000-memory.dmp	themida
behavioral1/memory/2980-3-0x00000000002C0000-0x00000000008E5000-memory.dmp	themida
behavioral1/memory/2980-2-0x00000000002C0000-0x00000000008E5000-memory.dmp	themida
behavioral1/memory/2980-5-0x00000000002C0000-0x00000000008E5000-memory.dmp	themida
behavioral1/memory/2980-6-0x00000000002C0000-0x00000000008E5000-memory.dmp	themida
behavioral1/memory/2980-4-0x00000000002C0000-0x00000000008E5000-memory.dmp	themida
behavioral1/memory/2980-1-0x00000000002C0000-0x00000000008E5000-memory.dmp	themida
behavioral1/memory/2980-8-0x00000000002C0000-0x00000000008E5000-memory.dmp	themida
behavioral1/memory/2980-12-0x00000000002C0000-0x00000000008E5000-memory.dmp	themida
behavioral1/memory/2980-16-0x00000000002C0000-0x00000000008E5000-memory.dmp	themida
behavioral1/memory/2980-20-0x00000000002C0000-0x00000000008E5000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	99dfe8a4454f28c944e3c749150aecdaa97e19bcc5a9cf644a509b7eb1d4e50f.exe

C:\Users\Admin\AppData\Local\Temp\99dfe8a4454f28c944e3c749150aecdaa97e19bcc5a9cf644a509b7eb1d4e50f.exe
"C:\Users\Admin\AppData\Local\Temp\99dfe8a4454f28c944e3c749150aecdaa97e19bcc5a9cf644a509b7eb1d4e50f.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
PID:2980

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2980-0-0x00000000002C0000-0x00000000008E5000-memory.dmp

Filesize
6.1MB

Download
memory/2980-3-0x00000000002C0000-0x00000000008E5000-memory.dmp

Filesize
6.1MB

Download
memory/2980-2-0x00000000002C0000-0x00000000008E5000-memory.dmp

Filesize
6.1MB

Download
memory/2980-5-0x00000000002C0000-0x00000000008E5000-memory.dmp

Filesize
6.1MB

Download
memory/2980-7-0x00000000002C1000-0x00000000002DC000-memory.dmp

Filesize
108KB

Download
memory/2980-6-0x00000000002C0000-0x00000000008E5000-memory.dmp

Filesize
6.1MB

Download
memory/2980-4-0x00000000002C0000-0x00000000008E5000-memory.dmp

Filesize
6.1MB

Download
memory/2980-1-0x00000000002C0000-0x00000000008E5000-memory.dmp

Filesize
6.1MB

Download
memory/2980-8-0x00000000002C0000-0x00000000008E5000-memory.dmp

Filesize
6.1MB

Download
memory/2980-12-0x00000000002C0000-0x00000000008E5000-memory.dmp

Filesize
6.1MB

Download
memory/2980-16-0x00000000002C0000-0x00000000008E5000-memory.dmp

Filesize
6.1MB

Download
memory/2980-20-0x00000000002C0000-0x00000000008E5000-memory.dmp

Filesize
6.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads