Analysis
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max time kernel
149s -
max time network
162s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
29-09-2023 08:48
Static task
static1
Behavioral task
behavioral1
Sample
5yjBTV1RX69ix2q.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
5yjBTV1RX69ix2q.exe
Resource
win10v2004-20230915-en
General
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Target
5yjBTV1RX69ix2q.exe
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Size
573KB
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MD5
6b4f6cc2f9b20734530acf3124a14cac
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SHA1
a07f1d4fe758c87819ff62671e015dbb38b8a7ac
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SHA256
d0018553788684559db6376fe759c7eb91b56532f24fcdee4468dae430511231
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SHA512
9000588d205a4e8ce68f3f6568ec9b82be16c85cd34695c9045f6e968f6529316995efa8cd11c889fcca89b287eb3e8a7a9d079662eba71aa3e102c79f194eaf
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SSDEEP
12288:QMiyiRJU/WceD6+kpqkIaHkuhirf6Kgtom55Nk5PMVFS:jZFe/ZkcH+kp2nHHm0
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
smtp.1tcl.com - Port:
25 - Username:
[email protected] - Password:
RRa*ysS8
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/5116-12-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral2/memory/5116-17-0x0000000005130000-0x0000000005140000-memory.dmp family_snakekeylogger -
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
5yjBTV1RX69ix2q.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 5yjBTV1RX69ix2q.exe Key opened \REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 5yjBTV1RX69ix2q.exe Key opened \REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 5yjBTV1RX69ix2q.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 49 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
5yjBTV1RX69ix2q.exedescription pid process target process PID 2372 set thread context of 5116 2372 5yjBTV1RX69ix2q.exe 5yjBTV1RX69ix2q.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
5yjBTV1RX69ix2q.exepid process 5116 5yjBTV1RX69ix2q.exe 5116 5yjBTV1RX69ix2q.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
5yjBTV1RX69ix2q.exedescription pid process Token: SeDebugPrivilege 5116 5yjBTV1RX69ix2q.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
5yjBTV1RX69ix2q.exedescription pid process target process PID 2372 wrote to memory of 5116 2372 5yjBTV1RX69ix2q.exe 5yjBTV1RX69ix2q.exe PID 2372 wrote to memory of 5116 2372 5yjBTV1RX69ix2q.exe 5yjBTV1RX69ix2q.exe PID 2372 wrote to memory of 5116 2372 5yjBTV1RX69ix2q.exe 5yjBTV1RX69ix2q.exe PID 2372 wrote to memory of 5116 2372 5yjBTV1RX69ix2q.exe 5yjBTV1RX69ix2q.exe PID 2372 wrote to memory of 5116 2372 5yjBTV1RX69ix2q.exe 5yjBTV1RX69ix2q.exe PID 2372 wrote to memory of 5116 2372 5yjBTV1RX69ix2q.exe 5yjBTV1RX69ix2q.exe PID 2372 wrote to memory of 5116 2372 5yjBTV1RX69ix2q.exe 5yjBTV1RX69ix2q.exe PID 2372 wrote to memory of 5116 2372 5yjBTV1RX69ix2q.exe 5yjBTV1RX69ix2q.exe -
outlook_office_path 1 IoCs
Processes:
5yjBTV1RX69ix2q.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 5yjBTV1RX69ix2q.exe -
outlook_win_path 1 IoCs
Processes:
5yjBTV1RX69ix2q.exedescription 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 5yjBTV1RX69ix2q.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\5yjBTV1RX69ix2q.exe"C:\Users\Admin\AppData\Local\Temp\5yjBTV1RX69ix2q.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2372 -
C:\Users\Admin\AppData\Local\Temp\5yjBTV1RX69ix2q.exe"C:\Users\Admin\AppData\Local\Temp\5yjBTV1RX69ix2q.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:5116
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3