Analysis
-
max time kernel
140s -
max time network
147s -
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 15:01
Static task
static1
Behavioral task
behavioral1
Sample
a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe
Resource
win10v2004-20230915-en
General
-
Target
a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe
-
Size
277KB
-
MD5
5ad41d4b9560b04a12928a393661189c
-
SHA1
b703d404755d4400072548ad29560c860939e1e0
-
SHA256
a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5
-
SHA512
890c002ac837629f08bb0ac139e6a3634482a1aa32ab28b5fb63189906245969050a86cd2a292b1aa7d98a7440dd3dc8d4ae3d85c05e89b63c9516f722beb4a8
-
SSDEEP
6144:4X5dp+sevRT2mDGn10/Ao5OJBnaznfgWrzLcSInGYDmRWD:E5P+sCDG8Ao5OJgTgWrzFIrmRW
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot6307848603:AAHuPYbVu9-pOqbv-rh59-MPBtLsLADgIWE/sendMessage?chat_id=6270867455
Signatures
-
Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
-
Snake Keylogger payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/2752-9-0x0000000140000000-0x0000000140022000-memory.dmp family_snakekeylogger behavioral2/memory/2752-14-0x000001933F3A0000-0x000001933F3B0000-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.
-
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe Key opened \REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe Key opened \REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Nwfzawr = "C:\\Users\\Admin\\AppData\\Roaming\\Nwfzawr.exe" a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.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 41 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exedescription pid process target process PID 568 set thread context of 2752 568 a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exepid process 2752 a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe 2752 a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exea2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exedescription pid process Token: SeDebugPrivilege 568 a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe Token: SeDebugPrivilege 2752 a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exedescription pid process target process PID 568 wrote to memory of 2752 568 a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe PID 568 wrote to memory of 2752 568 a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe PID 568 wrote to memory of 2752 568 a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe PID 568 wrote to memory of 2752 568 a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe PID 568 wrote to memory of 2752 568 a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe PID 568 wrote to memory of 2752 568 a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe -
outlook_office_path 1 IoCs
Processes:
a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe -
outlook_win_path 1 IoCs
Processes:
a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe"C:\Users\Admin\AppData\Local\Temp\a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:568 -
C:\Users\Admin\AppData\Local\Temp\a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exeC:\Users\Admin\AppData\Local\Temp\a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2752
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\a2e5356ff3d8617b129a23d76d85c2db3f6d803dccc160bdb95200db441229c5_JC.exe.log
Filesize1KB
MD59f5d0107d96d176b1ffcd5c7e7a42dc9
SHA1de83788e2f18629555c42a3e6fada12f70457141
SHA256d0630b8466cebaaf92533826f6547b6f36a3c480848dc38d650acd52b522a097
SHA51286cfaa3327b59a976ddd4a5915f3fe8c938481344fcbd10e7533b4c5003673d078756e62435940471658a03504c3bc30603204d6a133727a3f36c96d08714c61