snakekeylogger | da46c2f32055b74582d0ba99db21973c6e011ccbdba451ebf237f10e30401fe6

General

Target

DEKONT_00011123_5600966797pdf.exe
Size

83KB
MD5

71c56c7c4b213fe43a0acea6467d58dd
SHA1

2ea7d1641c51f94de578707f8b0759fb810697d2
SHA256

da46c2f32055b74582d0ba99db21973c6e011ccbdba451ebf237f10e30401fe6
SHA512

71823f522aaa498f14a9998c7c7fc6d46d528a673c6a65d25f33c96e9a5c7c207362aaed11004cce2f88c8d2021ac40cf5481fed5df08d6fb31e1dba6de4683d
SSDEEP

1536:luTCfkB5q6KWvLB3UfurR960JOnLHqnYXdKk:f86furPD0LHqYXf

Score

10^/10

snakekeylogger collection keylogger persistence stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6350529534:AAEbFW9VBWTKQfN1Y3K_5RJARCtOn1UqK8o/sendMessage?chat_id=1467583453

Signatures

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

Snake Keylogger payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1784-46-0x0000000140000000-0x0000000140022000-memory.dmp	family_snakekeylogger
behavioral1/memory/1784-49-0x0000000140000000-0x0000000140022000-memory.dmp	family_snakekeylogger
behavioral1/memory/1784-54-0x000000001B620000-0x000000001B6A0000-memory.dmp	family_snakekeylogger

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1861898231-3446828954-4278112889-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1861898231-3446828954-4278112889-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1861898231-3446828954-4278112889-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

DEKONT_00011123_5600966797pdf.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1861898231-3446828954-4278112889-1000\Software\Microsoft\Windows\CurrentVersion\Run\fffffff = "C:\\Users\\Admin\\AppData\\Roaming\\fffffff.exe"	DEKONT_00011123_5600966797pdf.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

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

Processes:

DEKONT_00011123_5600966797pdf.exe

description pid process target process

PID 1792 set thread context of 1784 1792 DEKONT_00011123_5600966797pdf.exe InstallUtil.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

InstallUtil.exe

pid process

1784 InstallUtil.exe
1784 InstallUtil.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

DEKONT_00011123_5600966797pdf.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 1792 DEKONT_00011123_5600966797pdf.exe
Token: SeDebugPrivilege 1784 InstallUtil.exe

flow	ioc
6	checkip.dyndns.org

description	pid	process	target process
PID 1792 set thread context of 1784	1792	DEKONT_00011123_5600966797pdf.exe	InstallUtil.exe

pid	process
1784	InstallUtil.exe
1784	InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	1792	DEKONT_00011123_5600966797pdf.exe
Token: SeDebugPrivilege	1784	InstallUtil.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

DEKONT_00011123_5600966797pdf.exe

description	pid	process	target process
PID 1792 wrote to memory of 1784	1792	DEKONT_00011123_5600966797pdf.exe	InstallUtil.exe
PID 1792 wrote to memory of 1784	1792	DEKONT_00011123_5600966797pdf.exe	InstallUtil.exe
PID 1792 wrote to memory of 1784	1792	DEKONT_00011123_5600966797pdf.exe	InstallUtil.exe
PID 1792 wrote to memory of 1784	1792	DEKONT_00011123_5600966797pdf.exe	InstallUtil.exe
PID 1792 wrote to memory of 1784	1792	DEKONT_00011123_5600966797pdf.exe	InstallUtil.exe
PID 1792 wrote to memory of 1784	1792	DEKONT_00011123_5600966797pdf.exe	InstallUtil.exe
PID 1792 wrote to memory of 1784	1792	DEKONT_00011123_5600966797pdf.exe	InstallUtil.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1861898231-3446828954-4278112889-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1861898231-3446828954-4278112889-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\DEKONT_00011123_5600966797pdf.exe
"C:\Users\Admin\AppData\Local\Temp\DEKONT_00011123_5600966797pdf.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1792

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1784

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab4896.tmp

Filesize
61KB

MD5
f3441b8572aae8801c04f3060b550443

SHA1
4ef0a35436125d6821831ef36c28ffaf196cda15

SHA256
6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

SHA512
5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar48E7.tmp

Filesize
163KB

MD5
9441737383d21192400eca82fda910ec

SHA1
725e0d606a4fc9ba44aa8ffde65bed15e65367e4

SHA256
bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

SHA512
7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

Download Submit
memory/1784-44-0x0000000140000000-0x0000000140022000-memory.dmp

Filesize
136KB

Download
memory/1784-55-0x000007FEF5EF0000-0x000007FEF68DC000-memory.dmp

Filesize
9.9MB

Download
memory/1784-54-0x000000001B620000-0x000000001B6A0000-memory.dmp

Filesize
512KB

Download
memory/1784-53-0x000007FEF5EF0000-0x000007FEF68DC000-memory.dmp

Filesize
9.9MB

Download
memory/1784-49-0x0000000140000000-0x0000000140022000-memory.dmp

Filesize
136KB

Download
memory/1784-47-0x000007FFFFFDF000-0x000007FFFFFE0000-memory.dmp

Filesize
4KB

Download
memory/1784-46-0x0000000140000000-0x0000000140022000-memory.dmp

Filesize
136KB

Download
memory/1784-45-0x0000000140000000-0x0000000140022000-memory.dmp

Filesize
136KB

Download
memory/1792-37-0x0000000002150000-0x00000000021A0000-memory.dmp

Filesize
320KB

Download
memory/1792-42-0x000000001B930000-0x000000001B9B0000-memory.dmp

Filesize
512KB

Download
memory/1792-41-0x000007FEF5EF0000-0x000007FEF68DC000-memory.dmp

Filesize
9.9MB

Download
memory/1792-40-0x0000000002450000-0x000000000249C000-memory.dmp

Filesize
304KB

Download
memory/1792-39-0x0000000002280000-0x00000000022B6000-memory.dmp

Filesize
216KB

Download
memory/1792-38-0x00000000021A0000-0x00000000021D8000-memory.dmp

Filesize
224KB

Download
memory/1792-0-0x0000000000950000-0x000000000096A000-memory.dmp

Filesize
104KB

Download
memory/1792-52-0x000007FEF5EF0000-0x000007FEF68DC000-memory.dmp

Filesize
9.9MB

Download
memory/1792-2-0x000000001B930000-0x000000001B9B0000-memory.dmp

Filesize
512KB

Download
memory/1792-1-0x000007FEF5EF0000-0x000007FEF68DC000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads