snakekeylogger | 4bb7ad555a0641fd9020b58ac7fdeb4eab618214f056a489739ad6aa91f528ae

Analysis

max time kernel
136s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28-10-2024 18:03

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General

Target

dekont_001.pdf.exe
Size

74KB
MD5

d998da7be623b6299e9257fcf5f80e3e
SHA1

91d22e36b0aa0484136b1ee6ae17abb1f4963927
SHA256

4bb7ad555a0641fd9020b58ac7fdeb4eab618214f056a489739ad6aa91f528ae
SHA512

2c842a461f28225f1cb87a7a904593789f22e5a8f4a33c4b445b0c50c8e07b52b708b670b110ac006be5c997dc8d5b20bf874448abaaeb7a8f817f9f839df597
SSDEEP

1536:s2bQcZBZbO8nKwK3Px4wSa43VZFnWFCH2n8yIejHBoswZDg7uj:s2bQF8CPbS71WFCW00HqswRgG

Score

10^/10

snakekeylogger collection discovery keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

https://api.telegram.org/bot8007960326:AAFswhlAovIYra6y-Z3vk6uZa4lj11jIino/sendMessage?chat_id=6008123474

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/3628-1097-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 3088 created 3540	3088	dekont_001.pdf.exe	56

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\RequiredContract.vbs	dekont_001.pdf.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.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
30	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3088 set thread context of 3628	3088	dekont_001.pdf.exe	91

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	dekont_001.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3088	dekont_001.pdf.exe
3628	InstallUtil.exe
3628	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3088	dekont_001.pdf.exe
Token: SeDebugPrivilege	3088	dekont_001.pdf.exe
Token: SeDebugPrivilege	3628	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3088 wrote to memory of 3628	3088	dekont_001.pdf.exe	91
PID 3088 wrote to memory of 3628	3088	dekont_001.pdf.exe	91
PID 3088 wrote to memory of 3628	3088	dekont_001.pdf.exe	91
PID 3088 wrote to memory of 3628	3088	dekont_001.pdf.exe	91
PID 3088 wrote to memory of 3628	3088	dekont_001.pdf.exe	91
PID 3088 wrote to memory of 3628	3088	dekont_001.pdf.exe	91
PID 3088 wrote to memory of 3628	3088	dekont_001.pdf.exe	91
PID 3088 wrote to memory of 3628	3088	dekont_001.pdf.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3540
- C:\Users\Admin\AppData\Local\Temp\dekont_001.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\dekont_001.pdf.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Drops startup file
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3088
- 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:3628

Network

MITRE ATT&CK Enterprise v15

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

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3088-0-0x000000007468E000-0x000000007468F000-memory.dmp

Filesize
4KB

Download
memory/3088-1-0x0000000000BD0000-0x0000000000BE8000-memory.dmp

Filesize
96KB

Download
memory/3088-2-0x0000000003090000-0x0000000003096000-memory.dmp

Filesize
24KB

Download
memory/3088-3-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3088-4-0x0000000006860000-0x000000000694E000-memory.dmp

Filesize
952KB

Download
memory/3088-5-0x0000000006F00000-0x00000000074A4000-memory.dmp

Filesize
5.6MB

Download
memory/3088-6-0x0000000006A00000-0x0000000006A92000-memory.dmp

Filesize
584KB

Download
memory/3088-12-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-20-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-66-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-70-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-68-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-64-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-62-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-60-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-58-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-56-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-52-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-50-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-48-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-46-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-54-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-44-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-42-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-40-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-38-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-36-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-34-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-32-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-30-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-28-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-26-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-22-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-18-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-16-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-14-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-10-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-8-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-24-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-7-0x0000000006860000-0x0000000006949000-memory.dmp

Filesize
932KB

Download
memory/3088-1081-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3088-1082-0x0000000006B70000-0x0000000006BD2000-memory.dmp

Filesize
392KB

Download
memory/3088-1083-0x0000000006BD0000-0x0000000006C1C000-memory.dmp

Filesize
304KB

Download
memory/3088-1087-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3088-1088-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3088-1089-0x0000000006DD0000-0x0000000006E24000-memory.dmp

Filesize
336KB

Download
memory/3088-1092-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3088-1094-0x000000007468E000-0x000000007468F000-memory.dmp

Filesize
4KB

Download
memory/3088-1096-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3628-1095-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3628-1097-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3628-1098-0x0000000005460000-0x00000000054FC000-memory.dmp

Filesize
624KB

Download
memory/3628-1099-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3628-1100-0x0000000006630000-0x0000000006680000-memory.dmp

Filesize
320KB

Download
memory/3628-1101-0x0000000006850000-0x0000000006A12000-memory.dmp

Filesize
1.8MB

Download
memory/3628-1102-0x00000000066B0000-0x00000000066BA000-memory.dmp

Filesize
40KB

Download
memory/3628-1103-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download