sasser | 904f012e59d9130797c164513520c1e559665351a44a946bada54ecbbf6283e4

Analysis

max time kernel
149s
max time network
149s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
07/05/2026, 22:17

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General

Target
sample.exe
Size 184KB
Sample260507-17bsgsbs8z
SHA256 904f012e59d9130797c164513520c1e559665351a44a946bada54ecbbf6283e4
MD5 b973853d0863070aca89ce00d4ee0fb9
SHA1 9ad983f541d6773343cde2292ccc5e46336af80e
SHA512 fb2ffdb28c19e41cd6af03796d6a1c7657e2bd72a9d8ed12ac7af5b8ace8534bf83fc03af8ede416c1e2c8aa5f287b710da31ae0441b99f1d143129fa3febc5c
SSDEEP 1536:+j6JDGxpy8sxKdryFr6fUvi4eEbXxsC94JXKMpohtc:+EiNsxKdryFru0i4wnhrSht
TLSH
T12F04D0637DD009B3D096463556E04B17EB3B753213A1D7C78B909F6B3E226C1892E31B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery sasser worm

Malware Config

Signatures

Family: Sasser
Sasser is a Windows worm written in C.
worm sasser

Detects Sasser 1 IoCs

resource	yara_rule
behavioral2/memory/5796-0-0x0000000000400000-0x000000000042E000-memory.dmp	family_sasser

Program crash 1 IoCs

pid	pid_target	Process	procid_target
440	5796	WerFault.exe	78

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	sample.exe

C:\Users\Admin\AppData\Local\Temp\sample.exe
"C:\Users\Admin\AppData\Local\Temp\sample.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:5796
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5796 -s 236
  2⤵
  - Program crash
  PID:440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5796 -ip 5796
1⤵
PID:4728

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/5796-0-0x0000000000400000-0x000000000042E000-memory.dmp

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