snakekeylogger | 6200e8758a22991d5ac0af555cbe25f8d2b59ca0f5f212402d8ec805c7f5cfe7

Resubmissions

03-10-2022 05:52

221003-gky5qaacg7 10

02-10-2022 10:41

221002-mq3yradabj 10

Analysis

max time kernel
102s
max time network
172s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
03-10-2022 05:52

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Report Analysis Logs

General

Target

RFQ-11015-12.exe
Size

27KB
MD5

a1dc1cff823fcdd66b73eef2e7c32715
SHA1

451cd2d2033b8774dab60a954e158c7aafaf2d47
SHA256

6200e8758a22991d5ac0af555cbe25f8d2b59ca0f5f212402d8ec805c7f5cfe7
SHA512

e105618d9863401f9ee56b7eb6ff826bb5b4bef76cef0b5b6b211c839b8ff7ed9277381c243f5e2855609c42c6ae1f74082c962398e5ebd2ed81a326d44e3623
SSDEEP

384:Nukgi2WJFHHMleT2gL1CAOh05PjoaYLR/NLXFqgnZE3eCjRyY+vGyox8u5/DpW+v:shKMM2jOj+RVLp4Vh+eyM8upJ

Score

10^/10

snakekeylogger collection keylogger persistence stealer

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

RFQ-11015-12.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\Bijyy\\Agpfya.exe\","	RFQ-11015-12.exe

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

Snake Keylogger payload 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/4888-303-0x000000000042027E-mapping.dmp	family_snakekeylogger
behavioral1/memory/4888-337-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.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.

Processes:

flow ioc

11 checkip.dyndns.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

RFQ-11015-12.exe

description pid process target process

PID 4872 set thread context of 4888 4872 RFQ-11015-12.exe MSBuild.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

powershell.exeRFQ-11015-12.exeMSBuild.exe

pid process

4896 powershell.exe
4896 powershell.exe
4896 powershell.exe
4872 RFQ-11015-12.exe
4872 RFQ-11015-12.exe
4888 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

RFQ-11015-12.exepowershell.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 4872 RFQ-11015-12.exe
Token: SeDebugPrivilege 4896 powershell.exe
Token: SeDebugPrivilege 4888 MSBuild.exe

flow	ioc
11	checkip.dyndns.org

description	pid	process	target process
PID 4872 set thread context of 4888	4872	RFQ-11015-12.exe	MSBuild.exe

pid	process
4896	powershell.exe
4896	powershell.exe
4896	powershell.exe
4872	RFQ-11015-12.exe
4872	RFQ-11015-12.exe
4888	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	4872	RFQ-11015-12.exe
Token: SeDebugPrivilege	4896	powershell.exe
Token: SeDebugPrivilege	4888	MSBuild.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

RFQ-11015-12.exe

description	pid	process	target process
PID 4872 wrote to memory of 4896	4872	RFQ-11015-12.exe	powershell.exe
PID 4872 wrote to memory of 4896	4872	RFQ-11015-12.exe	powershell.exe
PID 4872 wrote to memory of 4896	4872	RFQ-11015-12.exe	powershell.exe
PID 4872 wrote to memory of 4880	4872	RFQ-11015-12.exe	MSBuild.exe
PID 4872 wrote to memory of 4880	4872	RFQ-11015-12.exe	MSBuild.exe
PID 4872 wrote to memory of 4880	4872	RFQ-11015-12.exe	MSBuild.exe
PID 4872 wrote to memory of 4888	4872	RFQ-11015-12.exe	MSBuild.exe
PID 4872 wrote to memory of 4888	4872	RFQ-11015-12.exe	MSBuild.exe
PID 4872 wrote to memory of 4888	4872	RFQ-11015-12.exe	MSBuild.exe
PID 4872 wrote to memory of 4888	4872	RFQ-11015-12.exe	MSBuild.exe
PID 4872 wrote to memory of 4888	4872	RFQ-11015-12.exe	MSBuild.exe
PID 4872 wrote to memory of 4888	4872	RFQ-11015-12.exe	MSBuild.exe
PID 4872 wrote to memory of 4888	4872	RFQ-11015-12.exe	MSBuild.exe
PID 4872 wrote to memory of 4888	4872	RFQ-11015-12.exe	MSBuild.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\RFQ-11015-12.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ-11015-12.exe"
1⤵
- Modifies WinLogon for persistence
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4872

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANQAwAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4896

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
2⤵
PID:4880

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4888

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/4872-116-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-117-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-118-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-119-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-120-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-121-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-122-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-123-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-124-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-125-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-126-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-127-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-128-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-129-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-130-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-131-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-132-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-133-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-134-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-135-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-136-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-137-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-138-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-139-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-140-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-141-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-142-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-143-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-144-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-145-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-146-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-147-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-148-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-149-0x00000000000D0000-0x00000000000DC000-memory.dmp

Filesize
48KB

Download
memory/4872-150-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-151-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-152-0x0000000004E80000-0x000000000537E000-memory.dmp

Filesize
5.0MB

Download
memory/4872-153-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-154-0x0000000004A80000-0x0000000004B12000-memory.dmp

Filesize
584KB

Download
memory/4872-155-0x0000000004BC0000-0x0000000004C5C000-memory.dmp

Filesize
624KB

Download
memory/4872-156-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-157-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-158-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-159-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-160-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-161-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-162-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-163-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-164-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-165-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-166-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-167-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-168-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-169-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-170-0x0000000004E60000-0x0000000004E6A000-memory.dmp

Filesize
40KB

Download
memory/4872-171-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-172-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-173-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-174-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-175-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-176-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-177-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-178-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-179-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-180-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-181-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-182-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-183-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-184-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4872-200-0x0000000005CB0000-0x0000000005D64000-memory.dmp

Filesize
720KB

Download
memory/4872-201-0x0000000005F10000-0x0000000005FA2000-memory.dmp

Filesize
584KB

Download
memory/4872-202-0x0000000005FF0000-0x0000000006012000-memory.dmp

Filesize
136KB

Download
memory/4872-204-0x0000000006020000-0x0000000006370000-memory.dmp

Filesize
3.3MB

Download
memory/4888-303-0x000000000042027E-mapping.dmp

Download
memory/4888-337-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4888-372-0x00000000065D0000-0x0000000006792000-memory.dmp

Filesize
1.8MB

Download
memory/4896-215-0x0000000000000000-mapping.dmp

Download
memory/4896-251-0x00000000044E0000-0x0000000004516000-memory.dmp

Filesize
216KB

Download
memory/4896-256-0x0000000006BE0000-0x0000000007208000-memory.dmp

Filesize
6.2MB

Download
memory/4896-275-0x00000000072B0000-0x0000000007316000-memory.dmp

Filesize
408KB

Download
memory/4896-276-0x00000000074A0000-0x0000000007506000-memory.dmp

Filesize
408KB

Download
memory/4896-279-0x0000000007470000-0x000000000748C000-memory.dmp

Filesize
112KB

Download
memory/4896-280-0x0000000007CA0000-0x0000000007CEB000-memory.dmp

Filesize
300KB

Download
memory/4896-284-0x0000000007DA0000-0x0000000007E16000-memory.dmp

Filesize
472KB

Download
memory/4896-295-0x00000000092F0000-0x0000000009968000-memory.dmp

Filesize
6.5MB

Download
memory/4896-296-0x0000000008AA0000-0x0000000008ABA000-memory.dmp

Filesize
104KB

Download