Analysis
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max time kernel
126s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system -
submitted
20-11-2023 16:56
Static task
static1
Behavioral task
behavioral1
Sample
OZJa.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
OZJa.exe
Resource
win10v2004-20231023-en
General
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Target
OZJa.exe
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Size
458KB
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MD5
f764395a696a4dd4b3a010d6bc8208ea
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SHA1
22c55366e50f18902f2a4c3a6237b6fa42b1a744
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SHA256
a1d7f17262e1ea8bcc8e1095b93d4203b9007cda54e752205b9358c01cf1c0ed
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SHA512
2517f0c0d237ec5e9d83254f3980bd7ee17955dbb4027c459e3b4a6c635139bf6ef93ba22bb3c979d76e3008b469a4babf2c419037f1e0f55647723caa912f45
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SSDEEP
12288:VvCeU1SvZ951WVDFRWFpNRo5e3g7DvV44r96+tGB:VqeU14/OVfWFpHo5N7Dvm4r/tG
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot6735527834:AAH3PffzMarE3Ys8tyS4SQ0IBXrHFKmsmnQ/sendMessage?chat_id=6692536703
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/3980-11-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral2/memory/3980-20-0x0000000005330000-0x0000000005340000-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:
OZJa.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 OZJa.exe Key opened \REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 OZJa.exe Key opened \REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 OZJa.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 42 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
OZJa.exedescription pid process target process PID 1848 set thread context of 3980 1848 OZJa.exe OZJa.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
OZJa.exepid process 3980 OZJa.exe 3980 OZJa.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
OZJa.exedescription pid process Token: SeDebugPrivilege 3980 OZJa.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
OZJa.exedescription pid process target process PID 1848 wrote to memory of 3980 1848 OZJa.exe OZJa.exe PID 1848 wrote to memory of 3980 1848 OZJa.exe OZJa.exe PID 1848 wrote to memory of 3980 1848 OZJa.exe OZJa.exe PID 1848 wrote to memory of 3980 1848 OZJa.exe OZJa.exe PID 1848 wrote to memory of 3980 1848 OZJa.exe OZJa.exe PID 1848 wrote to memory of 3980 1848 OZJa.exe OZJa.exe PID 1848 wrote to memory of 3980 1848 OZJa.exe OZJa.exe PID 1848 wrote to memory of 3980 1848 OZJa.exe OZJa.exe -
outlook_office_path 1 IoCs
Processes:
OZJa.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 OZJa.exe -
outlook_win_path 1 IoCs
Processes:
OZJa.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 OZJa.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\OZJa.exe"C:\Users\Admin\AppData\Local\Temp\OZJa.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1848 -
C:\Users\Admin\AppData\Local\Temp\OZJa.exe"C:\Users\Admin\AppData\Local\Temp\OZJa.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3980
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3