snakekeylogger | c4a852d85ff37c57045cd79d2e21d3ea1325fed90116ecb513997b945fac9b42

General

Target

Purchase Order.exe
Size

1.7MB
MD5

1967f948fc281d1217739c9aa5b05d6b
SHA1

c2b30a0a3be5b4671218ec22ba4d58f155a054ca
SHA256

452f83faadab38d84bf3593ed94a45779e32dcf6008ee382c41f47531330e7d5
SHA512

2991226e8fe34ae1e60426c56d7f0bd91b1f25e7650bd54930484e512d1827ef1e24a9691c3a8e9eca4fc8f719ca4f6b98c9e75f96bb7a9fc082079b4e9accdd
SSDEEP

12288:7mOvpE6rn3e3GtugblwJADA4U0JrhdPjaWDy75EYzqR1:KOvGIOW/blwa0E5hZjaWDsqT

Score

10^/10

snakekeylogger collection credential_access discovery keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6820629737:AAGJ8tOkoD9jFHkd_L1kG1ntQ1J6zLhFsMc/sendMessage?chat_id=6783205225

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2624-10-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2624-17-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2624-15-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2624-13-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2624-8-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.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
4	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2748 set thread context of 2624	2748	Purchase Order.exe	30

System Location Discovery: System Language Discovery 1 TTPs 1 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	AddInProcess32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2624	AddInProcess32.exe
2624	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2624	AddInProcess32.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2748 wrote to memory of 2624	2748	Purchase Order.exe	30
PID 2748 wrote to memory of 2624	2748	Purchase Order.exe	30
PID 2748 wrote to memory of 2624	2748	Purchase Order.exe	30
PID 2748 wrote to memory of 2624	2748	Purchase Order.exe	30
PID 2748 wrote to memory of 2624	2748	Purchase Order.exe	30
PID 2748 wrote to memory of 2624	2748	Purchase Order.exe	30
PID 2748 wrote to memory of 2624	2748	Purchase Order.exe	30
PID 2748 wrote to memory of 2624	2748	Purchase Order.exe	30
PID 2748 wrote to memory of 2624	2748	Purchase Order.exe	30
PID 2748 wrote to memory of 2652	2748	Purchase Order.exe	31
PID 2748 wrote to memory of 2652	2748	Purchase Order.exe	31
PID 2748 wrote to memory of 2652	2748	Purchase Order.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe

C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2748
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.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:2624
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2748 -s 636
  2⤵
  PID:2652

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2624-13-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2624-19-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/2624-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2624-8-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2624-10-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2624-17-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2624-18-0x000000007481E000-0x000000007481F000-memory.dmp

Filesize
4KB

Download
memory/2624-15-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2624-23-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/2624-22-0x000000007481E000-0x000000007481F000-memory.dmp

Filesize
4KB

Download
memory/2624-4-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2624-6-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2748-3-0x0000000000520000-0x000000000059A000-memory.dmp

Filesize
488KB

Download
memory/2748-1-0x0000000000CD0000-0x0000000000CD8000-memory.dmp

Filesize
32KB

Download
memory/2748-20-0x000007FEF54E3000-0x000007FEF54E4000-memory.dmp

Filesize
4KB

Download
memory/2748-21-0x000007FEF54E0000-0x000007FEF5ECC000-memory.dmp

Filesize
9.9MB

Download
memory/2748-2-0x000007FEF54E0000-0x000007FEF5ECC000-memory.dmp

Filesize
9.9MB

Download
memory/2748-0-0x000007FEF54E3000-0x000007FEF54E4000-memory.dmp

Filesize
4KB

Download

Analysis

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