snakekeylogger | a5395961ee5eeddf2c81583e2eb11dafe8f8ebcc350204e0c8344e4d3e1614e6

General

Target

CITI USD10987 PI.exe
Size

925KB
MD5

6dd5b074dc21fc159a5e98c448dab3e5
SHA1

9be431a3d0fb17e0d7b69c62d288a7b47804fd36
SHA256

a5395961ee5eeddf2c81583e2eb11dafe8f8ebcc350204e0c8344e4d3e1614e6
SHA512

bbd3ea1bbe5e44f04973389ca391eab78f456a673fee59bbeed8368462dbc5a819bd5c929f8e5103337e3beb82002aeca5bc80ff25d3741fbe46c05c74e909db
SSDEEP

12288:8IOZByuDs0aOFF9EcBeK4cwyLO/uVvrvhytVJJbngUJo37DV4ELPr0MecveyyOGp:aoeeK4PmtuJUw4np3HLcp

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6576397218:AAGKDzpigihdpxoThh04ULC6usDNBiyjVcE/sendMessage?chat_id=5086753017

Signatures

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

Snake Keylogger payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4960-17-0x0000000000400000-0x000000000047C000-memory.dmp	family_snakekeylogger

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

CITI USD10987 PI.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000\Control Panel\International\Geo\Nation	CITI USD10987 PI.exe

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

CITI USD10987 PI.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CITI USD10987 PI.exe
Key opened	\REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CITI USD10987 PI.exe
Key opened	\REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CITI USD10987 PI.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

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

Processes:

CITI USD10987 PI.exe

description pid process target process

PID 4800 set thread context of 4960 4800 CITI USD10987 PI.exe CITI USD10987 PI.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

4192 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

CITI USD10987 PI.exe

pid process

4960 CITI USD10987 PI.exe
4960 CITI USD10987 PI.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

CITI USD10987 PI.exe

description pid process

Token: SeDebugPrivilege 4960 CITI USD10987 PI.exe

flow	ioc
69	checkip.dyndns.org

description	pid	process	target process
PID 4800 set thread context of 4960	4800	CITI USD10987 PI.exe	CITI USD10987 PI.exe

pid	process
4192	schtasks.exe

pid	process
4960	CITI USD10987 PI.exe
4960	CITI USD10987 PI.exe

description	pid	process
Token: SeDebugPrivilege	4960	CITI USD10987 PI.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

CITI USD10987 PI.exe

description	pid	process	target process
PID 4800 wrote to memory of 4192	4800	CITI USD10987 PI.exe	schtasks.exe
PID 4800 wrote to memory of 4192	4800	CITI USD10987 PI.exe	schtasks.exe
PID 4800 wrote to memory of 4192	4800	CITI USD10987 PI.exe	schtasks.exe
PID 4800 wrote to memory of 4960	4800	CITI USD10987 PI.exe	CITI USD10987 PI.exe
PID 4800 wrote to memory of 4960	4800	CITI USD10987 PI.exe	CITI USD10987 PI.exe
PID 4800 wrote to memory of 4960	4800	CITI USD10987 PI.exe	CITI USD10987 PI.exe
PID 4800 wrote to memory of 4960	4800	CITI USD10987 PI.exe	CITI USD10987 PI.exe
PID 4800 wrote to memory of 4960	4800	CITI USD10987 PI.exe	CITI USD10987 PI.exe
PID 4800 wrote to memory of 4960	4800	CITI USD10987 PI.exe	CITI USD10987 PI.exe
PID 4800 wrote to memory of 4960	4800	CITI USD10987 PI.exe	CITI USD10987 PI.exe
PID 4800 wrote to memory of 4960	4800	CITI USD10987 PI.exe	CITI USD10987 PI.exe

outlook_office_path 1 IoCs

Processes:

CITI USD10987 PI.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CITI USD10987 PI.exe

outlook_win_path 1 IoCs

Processes:

CITI USD10987 PI.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CITI USD10987 PI.exe

C:\Users\Admin\AppData\Local\Temp\CITI USD10987 PI.exe
"C:\Users\Admin\AppData\Local\Temp\CITI USD10987 PI.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4800

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lCcCZGSzAO" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA803.tmp"
2⤵
- Creates scheduled task(s)
PID:4192

C:\Users\Admin\AppData\Local\Temp\CITI USD10987 PI.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4960

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

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\CITI USD10987 PI.exe.log

Filesize
1KB

MD5
bb3d30439ec1e6435c3eac4df8c1d2e3

SHA1
c901d5946e53ae0a9e2417c8dfaf5786a0037422

SHA256
182adf89e57f80a92db9a5e13105cd59544f37855ca35f98116a0182ddd3b2e6

SHA512
d3547aadf665ce2552b3dfa350b80a5e813aa346870fb2b05a3b998096eebf563143bffe964e0f7243761b79420d1adf02f735779902901d1a41a1f35c557572

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA803.tmp

Filesize
1KB

MD5
4457116b0ba8bd0fb222b725cf99cf06

SHA1
5305a242cbfa9a1a8a1c3689cf980eb14d22093e

SHA256
02a9dc3bb2ed368b14df78aa7822e139e0c0598378e5dff38c794cb3072ccb0e

SHA512
257d983ec8276d14baea08830ce9cc64711e8457c29083529083362ab6545b5616aea353f46b06b846749f605f1316b7c1b67e0acfe0acb136d233d1561df70a

Download Submit
memory/4800-12-0x0000000006FD0000-0x0000000007096000-memory.dmp

Filesize
792KB

Download
memory/4800-4-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/4800-13-0x0000000006B90000-0x0000000006C0C000-memory.dmp

Filesize
496KB

Download
memory/4800-5-0x0000000005180000-0x0000000005212000-memory.dmp

Filesize
584KB

Download
memory/4800-6-0x0000000005060000-0x0000000005070000-memory.dmp

Filesize
64KB

Download
memory/4800-7-0x0000000005590000-0x000000000559A000-memory.dmp

Filesize
40KB

Download
memory/4800-8-0x0000000005630000-0x0000000005686000-memory.dmp

Filesize
344KB

Download
memory/4800-9-0x0000000005DA0000-0x00000000060F4000-memory.dmp

Filesize
3.3MB

Download
memory/4800-2-0x00000000050E0000-0x000000000517C000-memory.dmp

Filesize
624KB

Download
memory/4800-11-0x0000000005060000-0x0000000005070000-memory.dmp

Filesize
64KB

Download
memory/4800-0-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/4800-3-0x00000000057F0000-0x0000000005D94000-memory.dmp

Filesize
5.6MB

Download
memory/4800-10-0x0000000006F10000-0x0000000006F1C000-memory.dmp

Filesize
48KB

Download
memory/4800-21-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/4800-1-0x0000000000630000-0x000000000071C000-memory.dmp

Filesize
944KB

Download
memory/4960-20-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/4960-17-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/4960-22-0x0000000002FA0000-0x0000000002FB0000-memory.dmp

Filesize
64KB

Download
memory/4960-23-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/4960-24-0x0000000002FA0000-0x0000000002FB0000-memory.dmp

Filesize
64KB

Download
memory/4960-25-0x0000000003030000-0x000000000303A000-memory.dmp

Filesize
40KB

Download
memory/4960-26-0x0000000006B30000-0x0000000006B96000-memory.dmp

Filesize
408KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads