snakekeylogger | 3eb22db295cea1562fb2f1a04c23a702cb254ce8b1ba1f54f1ebe8e6d1f3fe49

General

Target

coreTEX_report_bgm.pdf.exe
Size

662KB
MD5

d72c1ac32d2592d677d9001caeedce3e
SHA1

e998014b6c233b584427736fb22a1ff8f634c7c6
SHA256

3eb22db295cea1562fb2f1a04c23a702cb254ce8b1ba1f54f1ebe8e6d1f3fe49
SHA512

4627a0ff50cf69d07887a3b7f3f01aa69ba640f62ff08888f8011f3f8bf45c470cb5377c66d84e981b3e38bfd847f97579e55a072fb3843c639f01421f775482
SSDEEP

12288:GvV+s1bSQT6tjjdB4C1duRNSIicDqaUI1pUmckroHLVx91oXcRgBkmss0//YQ2wG:Gt0DuRMIhqaVpUmDk791oSgBkBsEQwgR

Score

10^/10

snakekeylogger stormkitty collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot5830566856:AAGWFy9uABhntGSW37Ll1sdhis_3Sq_arBM/sendMessage?chat_id=1467583453

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/2376-140-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger

StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral2/memory/2376-140-0x0000000000400000-0x0000000000424000-memory.dmp	family_stormkitty

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	coreTEX_report_bgm.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	coreTEX_report_bgm.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	coreTEX_report_bgm.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
56	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1008 set thread context of 2376	1008	coreTEX_report_bgm.pdf.exe	91

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2376	coreTEX_report_bgm.pdf.exe
2376	coreTEX_report_bgm.pdf.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2376	coreTEX_report_bgm.pdf.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1008 wrote to memory of 2376	1008	coreTEX_report_bgm.pdf.exe	91
PID 1008 wrote to memory of 2376	1008	coreTEX_report_bgm.pdf.exe	91
PID 1008 wrote to memory of 2376	1008	coreTEX_report_bgm.pdf.exe	91
PID 1008 wrote to memory of 2376	1008	coreTEX_report_bgm.pdf.exe	91
PID 1008 wrote to memory of 2376	1008	coreTEX_report_bgm.pdf.exe	91
PID 1008 wrote to memory of 2376	1008	coreTEX_report_bgm.pdf.exe	91
PID 1008 wrote to memory of 2376	1008	coreTEX_report_bgm.pdf.exe	91
PID 1008 wrote to memory of 2376	1008	coreTEX_report_bgm.pdf.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	coreTEX_report_bgm.pdf.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	coreTEX_report_bgm.pdf.exe

C:\Users\Admin\AppData\Local\Temp\coreTEX_report_bgm.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\coreTEX_report_bgm.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1008
- C:\Users\Admin\AppData\Local\Temp\coreTEX_report_bgm.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\coreTEX_report_bgm.pdf.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2376

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\coreTEX_report_bgm.pdf.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/1008-133-0x00000000001C0000-0x000000000026C000-memory.dmp

Filesize
688KB

Download
memory/1008-134-0x00000000051A0000-0x0000000005744000-memory.dmp

Filesize
5.6MB

Download
memory/1008-135-0x0000000004C90000-0x0000000004D22000-memory.dmp

Filesize
584KB

Download
memory/1008-136-0x0000000004C20000-0x0000000004C2A000-memory.dmp

Filesize
40KB

Download
memory/1008-137-0x0000000004ED0000-0x0000000004EE0000-memory.dmp

Filesize
64KB

Download
memory/1008-138-0x0000000004ED0000-0x0000000004EE0000-memory.dmp

Filesize
64KB

Download
memory/1008-139-0x0000000007F10000-0x0000000007FAC000-memory.dmp

Filesize
624KB

Download
memory/2376-140-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2376-143-0x00000000050C0000-0x00000000050D0000-memory.dmp

Filesize
64KB

Download
memory/2376-144-0x00000000050C0000-0x00000000050D0000-memory.dmp

Filesize
64KB

Download

Analysis

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