snakekeylogger | a42b85487137aef36ca9eb586988d2ff2181425c1ca8b0deaef5c30e4b6503bc

General

Target

z55PleasefindattachedtheRFQinquiry.exe
Size

2.8MB
MD5

ee24e64f34a5580c5c9ee2cebefc312d
SHA1

3a8a93cd79b36dedfd0827f268d210574c66f9bb
SHA256

a42b85487137aef36ca9eb586988d2ff2181425c1ca8b0deaef5c30e4b6503bc
SHA512

8d37331a15367009fa56cbf03c0e66730aea15fc5b437fe4f8070d9b75f12d102a424196a033cdd5ea40abc1aa5d205dfaf44f4fd49008921e22f01a59122321
SSDEEP

12288:QeQU766QpZ72faJZxZtohjS902gSo+nknSsi1JqWlVHQECjzW:QeZnQpXJbD4IYus+J1/NC2

Score

10^/10

snakekeylogger collection discovery evasion execution keylogger stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.financ-fire.com
Port:
587
Username:
[email protected]
Password:
W6otxNGOdwF9

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
mail.financ-fire.com
Port:
587
Username:
[email protected]
Password:
W6otxNGOdwF9
Email To:
[email protected]

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2996-21-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2996-22-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2996-17-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2996-16-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2996-20-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	z55PleasefindattachedtheRFQinquiry.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2220	powershell.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	installutil.exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	installutil.exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	installutil.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	z55PleasefindattachedtheRFQinquiry.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	z55PleasefindattachedtheRFQinquiry.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
2	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 576 set thread context of 2996	576	z55PleasefindattachedtheRFQinquiry.exe	32

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe	installutil.exe

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

System Information Discovery
T1082

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	installutil.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2220	powershell.exe
2996	installutil.exe
2996	installutil.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2996	installutil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	576	z55PleasefindattachedtheRFQinquiry.exe
Token: SeDebugPrivilege	2220	powershell.exe
Token: SeDebugPrivilege	2996	installutil.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2996	installutil.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 576 wrote to memory of 2220	576	z55PleasefindattachedtheRFQinquiry.exe	30
PID 576 wrote to memory of 2220	576	z55PleasefindattachedtheRFQinquiry.exe	30
PID 576 wrote to memory of 2220	576	z55PleasefindattachedtheRFQinquiry.exe	30
PID 576 wrote to memory of 2996	576	z55PleasefindattachedtheRFQinquiry.exe	32
PID 576 wrote to memory of 2996	576	z55PleasefindattachedtheRFQinquiry.exe	32
PID 576 wrote to memory of 2996	576	z55PleasefindattachedtheRFQinquiry.exe	32
PID 576 wrote to memory of 2996	576	z55PleasefindattachedtheRFQinquiry.exe	32
PID 576 wrote to memory of 2996	576	z55PleasefindattachedtheRFQinquiry.exe	32
PID 576 wrote to memory of 2996	576	z55PleasefindattachedtheRFQinquiry.exe	32
PID 576 wrote to memory of 2996	576	z55PleasefindattachedtheRFQinquiry.exe	32
PID 576 wrote to memory of 2996	576	z55PleasefindattachedtheRFQinquiry.exe	32
PID 576 wrote to memory of 2996	576	z55PleasefindattachedtheRFQinquiry.exe	32
PID 576 wrote to memory of 2996	576	z55PleasefindattachedtheRFQinquiry.exe	32
PID 576 wrote to memory of 2996	576	z55PleasefindattachedtheRFQinquiry.exe	32
PID 576 wrote to memory of 2996	576	z55PleasefindattachedtheRFQinquiry.exe	32
PID 576 wrote to memory of 1648	576	z55PleasefindattachedtheRFQinquiry.exe	33
PID 576 wrote to memory of 1648	576	z55PleasefindattachedtheRFQinquiry.exe	33
PID 576 wrote to memory of 1648	576	z55PleasefindattachedtheRFQinquiry.exe	33

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	z55PleasefindattachedtheRFQinquiry.exe

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	installutil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	installutil.exe

C:\Users\Admin\AppData\Local\Temp\z55PleasefindattachedtheRFQinquiry.exe
"C:\Users\Admin\AppData\Local\Temp\z55PleasefindattachedtheRFQinquiry.exe"
1⤵
- UAC bypass
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:576
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\z55PleasefindattachedtheRFQinquiry.exe" -Force
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2220
- 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
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:2996
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 576 -s 624
  2⤵
  PID:1648

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

1

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

2

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\Cab1E9A.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar1EEB.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/576-23-0x000007FEF6420000-0x000007FEF6E0C000-memory.dmp

Filesize
9.9MB

Download
memory/576-1-0x0000000001060000-0x0000000001078000-memory.dmp

Filesize
96KB

Download
memory/576-2-0x0000000000A10000-0x0000000000A8A000-memory.dmp

Filesize
488KB

Download
memory/576-3-0x000007FEF6420000-0x000007FEF6E0C000-memory.dmp

Filesize
9.9MB

Download
memory/576-0-0x000007FEF6423000-0x000007FEF6424000-memory.dmp

Filesize
4KB

Download
memory/2220-8-0x0000000002660000-0x00000000026E0000-memory.dmp

Filesize
512KB

Download
memory/2220-9-0x000000001B320000-0x000000001B602000-memory.dmp

Filesize
2.9MB

Download
memory/2220-10-0x0000000001D70000-0x0000000001D78000-memory.dmp

Filesize
32KB

Download
memory/2996-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2996-17-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2996-16-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2996-13-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2996-20-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2996-22-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2996-21-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2996-12-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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