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Analysis
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max time kernel
140s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
11/10/2023, 19:25
Static task
static1
Behavioral task
behavioral1
Sample
Nmtdeo.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
Nmtdeo.exe
Resource
win10v2004-20230915-en
General
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Target
Nmtdeo.exe
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Size
277KB
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MD5
597b9168856a6693e107e7f1e80483e7
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SHA1
ce15dbb1a3397127def9ab607694a82c14abfa2a
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SHA256
58639b55ef4faebf0a6ab625ecdd348508fab2fc433a1dcc2bee02b20bee2078
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SHA512
6b431b15a49114e92705e7549dd1143dcbc40c78f2e89c099cda3f3e312306dfb330535d01b41f53f90116e6126a1662b120def47b4e02af7f71a102891b969b
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SSDEEP
6144:+KbhmkakvzstDVP+8SJIDRINLLOxJSksFGAtvHLqsIaP7i2NnD:+N3PZmvJIt6LOXSBFGeBIaj7N
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot6339928612:AAF--PH7Kfwf4Dph8taQxUsHJm3oLkMeciE/sendMessage?chat_id=5532763142
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 1 IoCs
resource yara_rule behavioral2/memory/1880-11-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Control Panel\International\Geo\Nation Nmtdeo.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.
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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
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Nmtdeo.exe Key opened \REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Nmtdeo.exe Key opened \REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Nmtdeo.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.
flow ioc 49 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4124 set thread context of 1880 4124 Nmtdeo.exe 100 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
pid Process 1196 ipconfig.exe 2456 ipconfig.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4124 Nmtdeo.exe 4124 Nmtdeo.exe 1880 Nmtdeo.exe 1880 Nmtdeo.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4124 Nmtdeo.exe Token: SeDebugPrivilege 1880 Nmtdeo.exe -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 4124 wrote to memory of 2252 4124 Nmtdeo.exe 85 PID 4124 wrote to memory of 2252 4124 Nmtdeo.exe 85 PID 4124 wrote to memory of 2252 4124 Nmtdeo.exe 85 PID 2252 wrote to memory of 1196 2252 cmd.exe 87 PID 2252 wrote to memory of 1196 2252 cmd.exe 87 PID 2252 wrote to memory of 1196 2252 cmd.exe 87 PID 4124 wrote to memory of 1492 4124 Nmtdeo.exe 95 PID 4124 wrote to memory of 1492 4124 Nmtdeo.exe 95 PID 4124 wrote to memory of 1492 4124 Nmtdeo.exe 95 PID 1492 wrote to memory of 2456 1492 cmd.exe 97 PID 1492 wrote to memory of 2456 1492 cmd.exe 97 PID 1492 wrote to memory of 2456 1492 cmd.exe 97 PID 4124 wrote to memory of 1724 4124 Nmtdeo.exe 99 PID 4124 wrote to memory of 1724 4124 Nmtdeo.exe 99 PID 4124 wrote to memory of 1724 4124 Nmtdeo.exe 99 PID 4124 wrote to memory of 1880 4124 Nmtdeo.exe 100 PID 4124 wrote to memory of 1880 4124 Nmtdeo.exe 100 PID 4124 wrote to memory of 1880 4124 Nmtdeo.exe 100 PID 4124 wrote to memory of 1880 4124 Nmtdeo.exe 100 PID 4124 wrote to memory of 1880 4124 Nmtdeo.exe 100 PID 4124 wrote to memory of 1880 4124 Nmtdeo.exe 100 PID 4124 wrote to memory of 1880 4124 Nmtdeo.exe 100 PID 4124 wrote to memory of 1880 4124 Nmtdeo.exe 100 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Nmtdeo.exe -
outlook_win_path 1 IoCs
description 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 Nmtdeo.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Nmtdeo.exe"C:\Users\Admin\AppData\Local\Temp\Nmtdeo.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4124 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ipconfig /release2⤵
- Suspicious use of WriteProcessMemory
PID:2252 -
C:\Windows\SysWOW64\ipconfig.exeipconfig /release3⤵
- Gathers network information
PID:1196
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ipconfig /renew2⤵
- Suspicious use of WriteProcessMemory
PID:1492 -
C:\Windows\SysWOW64\ipconfig.exeipconfig /renew3⤵
- Gathers network information
PID:2456
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C:\Users\Admin\AppData\Local\Temp\Nmtdeo.exeC:\Users\Admin\AppData\Local\Temp\Nmtdeo.exe2⤵PID:1724
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C:\Users\Admin\AppData\Local\Temp\Nmtdeo.exeC:\Users\Admin\AppData\Local\Temp\Nmtdeo.exe2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1880
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD5f7047b64aa01f9d80c7a5e177ce2485c
SHA1bab6005f4a30f12ee36b9abf6bfdfaa5411bbff8
SHA256807356d2424d2d04f51ebd56f926d4d5a8318bc947c76569a3b5ca2c2f279915
SHA512a9af5ace72eb66a6156a5d8764031cdc46feefffabb6898651f91a5af7f3bcef645e63e8d01ed35f1105e824d6830f6fa97e70adda2d5b148ffaff5f54ca248f