snakekeylogger | ca3a3bfe5fa34b3d8036d1f3465654d604faf89c914f808c40fa7fa506181adb

Analysis

max time kernel
131s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25-09-2024 06:38

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General

Target

SKMBT_C22024082310420.pdf.exe
Size

954KB
MD5

0739fac7999ca876722fb5500f68ad28
SHA1

c0dd8304902264cb15fc11f9a77310ddf646c3c6
SHA256

ca3a3bfe5fa34b3d8036d1f3465654d604faf89c914f808c40fa7fa506181adb
SHA512

cb6e9fdbeca08360b5f37a023f8a0526e288c4141e9c10f0944e91a5c30464d124176030d901c75af8c8fc3b6a10648746f648dcea9411eeb59ad5fde3249c86
SSDEEP

24576:iqQvaIDEiGUbwU+avF0NIOB+WrqYwt8xc5yhW1ylAcCpW:RIBG2+AF6Rq19I7

Score

10^/10

snakekeylogger collection discovery keylogger persistence stealer

Malware Config

Extracted

Family

snakekeylogger

https://api.telegram.org/bot7474456639:AAF2j-ISHiGNoePD1xhl9WRvvV-5BBOVIcQ/sendMessage?chat_id=7365454061

Signatures

Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
stealer keylogger snakekeylogger

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/4892-1094-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 4540 created 3596	4540	SKMBT_C22024082310420.pdf.exe	56

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rwznfta = "C:\\Users\\Admin\\AppData\\Roaming\\Rwznfta.exe"	SKMBT_C22024082310420.pdf.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
18	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4540 set thread context of 4892	4540	SKMBT_C22024082310420.pdf.exe	89

System Location Discovery: System Language Discovery 1 TTPs 2 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	SKMBT_C22024082310420.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4540	SKMBT_C22024082310420.pdf.exe
4892	InstallUtil.exe
4892	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4540	SKMBT_C22024082310420.pdf.exe
Token: SeDebugPrivilege	4540	SKMBT_C22024082310420.pdf.exe
Token: SeDebugPrivilege	4892	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4540 wrote to memory of 4892	4540	SKMBT_C22024082310420.pdf.exe	89
PID 4540 wrote to memory of 4892	4540	SKMBT_C22024082310420.pdf.exe	89
PID 4540 wrote to memory of 4892	4540	SKMBT_C22024082310420.pdf.exe	89
PID 4540 wrote to memory of 4892	4540	SKMBT_C22024082310420.pdf.exe	89
PID 4540 wrote to memory of 4892	4540	SKMBT_C22024082310420.pdf.exe	89
PID 4540 wrote to memory of 4892	4540	SKMBT_C22024082310420.pdf.exe	89
PID 4540 wrote to memory of 4892	4540	SKMBT_C22024082310420.pdf.exe	89
PID 4540 wrote to memory of 4892	4540	SKMBT_C22024082310420.pdf.exe	89

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3596
- C:\Users\Admin\AppData\Local\Temp\SKMBT_C22024082310420.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\SKMBT_C22024082310420.pdf.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4540
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4892

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4324,i,16316361669272684588,6171287487746154806,262144 --variations-seed-version --mojo-platform-channel-handle=4076 /prefetch:8
1⤵
PID:228

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4540-0-0x00000000744BE000-0x00000000744BF000-memory.dmp

Filesize
4KB

Download
memory/4540-1-0x0000000000DE0000-0x0000000000ED4000-memory.dmp

Filesize
976KB

Download
memory/4540-2-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4540-3-0x0000000005AE0000-0x0000000005BC6000-memory.dmp

Filesize
920KB

Download
memory/4540-4-0x0000000005C40000-0x0000000005D26000-memory.dmp

Filesize
920KB

Download
memory/4540-28-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-62-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-48-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-36-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-30-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-26-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-24-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-22-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-21-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-18-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-16-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-14-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-8-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-68-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-66-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-64-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-60-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-58-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-56-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-55-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-52-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-50-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-46-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-44-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-42-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-40-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-38-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-34-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-32-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-5-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-12-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-10-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-6-0x0000000005C40000-0x0000000005D21000-memory.dmp

Filesize
900KB

Download
memory/4540-1079-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4540-1080-0x0000000006520000-0x0000000006582000-memory.dmp

Filesize
392KB

Download
memory/4540-1081-0x0000000006580000-0x00000000065CC000-memory.dmp

Filesize
304KB

Download
memory/4540-1083-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4540-1087-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4540-1086-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4540-1088-0x0000000006F70000-0x0000000007514000-memory.dmp

Filesize
5.6MB

Download
memory/4540-1089-0x0000000006660000-0x00000000066B4000-memory.dmp

Filesize
336KB

Download
memory/4540-1092-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4892-1093-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4892-1094-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4892-1095-0x0000000005300000-0x000000000539C000-memory.dmp

Filesize
624KB

Download
memory/4892-1096-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4892-1097-0x0000000006640000-0x0000000006690000-memory.dmp

Filesize
320KB

Download
memory/4892-1098-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4892-1099-0x0000000006860000-0x0000000006A22000-memory.dmp

Filesize
1.8MB

Download
memory/4892-1100-0x0000000006730000-0x00000000067C2000-memory.dmp

Filesize
584KB

Download
memory/4892-1101-0x00000000066C0000-0x00000000066CA000-memory.dmp

Filesize
40KB

Download
memory/4892-1102-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download