snakekeylogger | c9c4df8ccf2d7149cf5c6ad5e630e5b8385ba3e8ec6d3cbf31d362abb57671b5

General

Target

22390016593_20210618_14375054_HesapOzeti.pdf.exe
Size

922KB
MD5

27e278b3f081e2912b69eafe4e67d551
SHA1

a003df37c0d214dba9bbc8b041852354a43e00d7
SHA256

c9c4df8ccf2d7149cf5c6ad5e630e5b8385ba3e8ec6d3cbf31d362abb57671b5
SHA512

b912042baa589c99ee1f424b6c8e199ef9fe69f5678b0e40aed0e9820cce6d06364cfd51248a30a373d5c49198390d8e98cdd7e389ff8672d618f3b77ae60924
SSDEEP

12288:dLkcoxg7v3qnC11ErwIhh0F4qwUgUny5QWmqzbe7cJN+yt1AyPD2BRax2S:hfmMv6Ckr7Mny5QWmkC4JozkyB4x2S

Score

10^/10

snakekeylogger collection discovery keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7754092182:AAFhYG1ixwJ3gbkMI8P9ofyeJ8nQ3W5NoAU/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/2828-12-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Drops startup file 1 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
2136	Glagolitic.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.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
24	checkip.dyndns.org

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x000e000000023aa2-5.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2136 set thread context of 2828	2136	Glagolitic.exe	88

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4128	2136	WerFault.exe	87

System Location Discovery: System Language Discovery 1 TTPs 3 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	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	22390016593_20210618_14375054_HesapOzeti.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Glagolitic.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2828	RegSvcs.exe
2828	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2136	Glagolitic.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2828	RegSvcs.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
4528	22390016593_20210618_14375054_HesapOzeti.pdf.exe
4528	22390016593_20210618_14375054_HesapOzeti.pdf.exe
2136	Glagolitic.exe
2136	Glagolitic.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
4528	22390016593_20210618_14375054_HesapOzeti.pdf.exe
4528	22390016593_20210618_14375054_HesapOzeti.pdf.exe
2136	Glagolitic.exe
2136	Glagolitic.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4528 wrote to memory of 2136	4528	22390016593_20210618_14375054_HesapOzeti.pdf.exe	87
PID 4528 wrote to memory of 2136	4528	22390016593_20210618_14375054_HesapOzeti.pdf.exe	87
PID 4528 wrote to memory of 2136	4528	22390016593_20210618_14375054_HesapOzeti.pdf.exe	87
PID 2136 wrote to memory of 2828	2136	Glagolitic.exe	88
PID 2136 wrote to memory of 2828	2136	Glagolitic.exe	88
PID 2136 wrote to memory of 2828	2136	Glagolitic.exe	88
PID 2136 wrote to memory of 2828	2136	Glagolitic.exe	88

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\22390016593_20210618_14375054_HesapOzeti.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\22390016593_20210618_14375054_HesapOzeti.pdf.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4528
- C:\Users\Admin\AppData\Local\nonsubmerged\Glagolitic.exe
  "C:\Users\Admin\AppData\Local\Temp\22390016593_20210618_14375054_HesapOzeti.pdf.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2136
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\22390016593_20210618_14375054_HesapOzeti.pdf.exe"
    3⤵
    - Accesses Microsoft Outlook profiles
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:2828
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2136 -s 768
    3⤵
    - Program crash
    PID:4128

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2136 -ip 2136
1⤵
PID:3088

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\nouses

Filesize
130KB

MD5
83db6f69c7340e0056c6944b1fd3d1e9

SHA1
2036ee1e22a2de5317e6999282cad5f72f77fba2

SHA256
ffa2de34243ec779c17d2702b500ee6bb77fea44e536c877bb31eb147d8934db

SHA512
833c83092bb6483fdd3f73c0466633b7239e49ac6d4907e5c695dbcd1832a7d325e0c620b233ab810c35b496280d20d849093838172de48ee8100da230ac3c73

Download Submit
C:\Users\Admin\AppData\Local\nonsubmerged\Glagolitic.exe

Filesize
922KB

MD5
27e278b3f081e2912b69eafe4e67d551

SHA1
a003df37c0d214dba9bbc8b041852354a43e00d7

SHA256
c9c4df8ccf2d7149cf5c6ad5e630e5b8385ba3e8ec6d3cbf31d362abb57671b5

SHA512
b912042baa589c99ee1f424b6c8e199ef9fe69f5678b0e40aed0e9820cce6d06364cfd51248a30a373d5c49198390d8e98cdd7e389ff8672d618f3b77ae60924

Download Submit
memory/2136-10-0x0000000003790000-0x0000000003990000-memory.dmp

Filesize
2.0MB

Download
memory/2828-14-0x0000000005D70000-0x0000000006314000-memory.dmp

Filesize
5.6MB

Download
memory/2828-12-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2828-13-0x0000000073F8E000-0x0000000073F8F000-memory.dmp

Filesize
4KB

Download
memory/2828-15-0x0000000005870000-0x000000000590C000-memory.dmp

Filesize
624KB

Download
memory/2828-16-0x0000000073F80000-0x0000000074730000-memory.dmp

Filesize
7.7MB

Download
memory/2828-17-0x0000000073F8E000-0x0000000073F8F000-memory.dmp

Filesize
4KB

Download
memory/2828-18-0x0000000073F80000-0x0000000074730000-memory.dmp

Filesize
7.7MB

Download
memory/2828-19-0x0000000006A90000-0x0000000006AE0000-memory.dmp

Filesize
320KB

Download
memory/2828-20-0x0000000006CB0000-0x0000000006E72000-memory.dmp

Filesize
1.8MB

Download
memory/2828-21-0x0000000006B80000-0x0000000006C12000-memory.dmp

Filesize
584KB

Download
memory/2828-22-0x0000000006B10000-0x0000000006B1A000-memory.dmp

Filesize
40KB

Download
memory/4528-2-0x0000000004050000-0x0000000004250000-memory.dmp

Filesize
2.0MB

Download

Analysis

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