b99cffdef58d4d86fd504e95bed3c72fb330d7a9ac9e017c503bbbdd5540aa1a

Analysis

max time kernel
97s
max time network
33s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
06/12/2022, 19:42

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General

Target

b99cffdef58d4d86fd504e95bed3c72fb330d7a9ac9e017c503bbbdd5540aa1a.exe
Size

58KB
MD5

55754081374839094549b2c3a7de48eb
SHA1

9655f947a57f7a58b8bab0e223e59a38c9edb8ac
SHA256

b99cffdef58d4d86fd504e95bed3c72fb330d7a9ac9e017c503bbbdd5540aa1a
SHA512

8e34d466ade463a563c0119b0fddc1c3c69003d8e4bd238ff23689bfa71bef25cedd0912426ea617e6dcad8c9ea0ff97660aaac50ed8c6d44cd74ebc27ed8fee
SSDEEP

1536:tByv8PT5o71ehn5AY4/OXxXyXXO3BfNyjjjjjjuU8J:tByvGy7185TuugXXKfPUc

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\cache.dat"	svchost.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1776	b99cffdef58d4d86fd504e95bed3c72fb330d7a9ac9e017c503bbbdd5540aa1a.exe
1628	svchost.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1776	b99cffdef58d4d86fd504e95bed3c72fb330d7a9ac9e017c503bbbdd5540aa1a.exe
1776	b99cffdef58d4d86fd504e95bed3c72fb330d7a9ac9e017c503bbbdd5540aa1a.exe

C:\Users\Admin\AppData\Local\Temp\b99cffdef58d4d86fd504e95bed3c72fb330d7a9ac9e017c503bbbdd5540aa1a.exe
"C:\Users\Admin\AppData\Local\Temp\b99cffdef58d4d86fd504e95bed3c72fb330d7a9ac9e017c503bbbdd5540aa1a.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: MapViewOfSection
PID:1776

C:\Windows\syswow64\svchost.exe
"C:\Windows\syswow64\svchost.exe"
1⤵
- Modifies WinLogon for persistence
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:1628

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1264-58-0x00000000775C0000-0x0000000077769000-memory.dmp

Filesize
1.7MB

Download
memory/1264-59-0x0000000002170000-0x0000000002178000-memory.dmp

Filesize
32KB

Download
memory/1264-60-0x00000000775C0000-0x0000000077769000-memory.dmp

Filesize
1.7MB

Download
memory/1628-61-0x0000000075F01000-0x0000000075F03000-memory.dmp

Filesize
8KB

Download
memory/1776-54-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1776-55-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1776-56-0x00000000003E0000-0x00000000003F9000-memory.dmp

Filesize
100KB

Download
memory/1776-57-0x00000000003E0000-0x00000000003F9000-memory.dmp

Filesize
100KB

Download