Analysis
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max time kernel
139s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
12-02-2024 10:50
Behavioral task
behavioral1
Sample
f383d42f52d226f1280dae8f3c761e6d.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
f383d42f52d226f1280dae8f3c761e6d.exe
Resource
win10v2004-20231215-en
General
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Target
f383d42f52d226f1280dae8f3c761e6d.exe
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Size
42KB
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MD5
f383d42f52d226f1280dae8f3c761e6d
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SHA1
4f7f76201dd474b8839da97821c8704afdab2ffe
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SHA256
f01893f0ea80536648b45114aa491a4559b53696290f58ec66335bc5c116d9db
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SHA512
eb4d74f1a0c21fdae1a8eddbc7a9cb42aa04d5f27e19f9b12e11c303ba52292100f57e3a9b8b0bc1b05588eb584d8ad3c73fc5e717d36169adde516c90380c18
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SSDEEP
96:QTgo70FlDiC5ZUo4ossr9r4GvgsKC5Ys0X+zNt:QTgJhYo4orprW7o0XY
Malware Config
Extracted
purecrypter
http://103.183.118.30/THANOS/Uhjbks.mp4
Extracted
agenttesla
Protocol: smtp- Host:
mail.victoriahotel.ro - Port:
587 - Username:
[email protected] - Password:
Enescu#1234 - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Detect ZGRat V1 34 IoCs
resource yara_rule behavioral2/memory/4116-2-0x0000000005C60000-0x0000000005D18000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-5-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-8-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-6-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-10-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-12-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-14-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-18-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-16-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-20-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-22-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-24-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-26-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-28-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-30-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-32-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-34-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-36-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-38-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-40-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-42-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-44-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-46-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-48-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-50-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-52-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-54-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-56-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-58-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-60-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-62-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-64-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-68-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 behavioral2/memory/4116-66-0x0000000005C60000-0x0000000005D12000-memory.dmp family_zgrat_v1 -
PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
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Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 47 api.ipify.org 48 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4116 set thread context of 4240 4116 f383d42f52d226f1280dae8f3c761e6d.exe 92 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4240 f383d42f52d226f1280dae8f3c761e6d.exe 4240 f383d42f52d226f1280dae8f3c761e6d.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4116 f383d42f52d226f1280dae8f3c761e6d.exe Token: SeDebugPrivilege 4240 f383d42f52d226f1280dae8f3c761e6d.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4116 wrote to memory of 4240 4116 f383d42f52d226f1280dae8f3c761e6d.exe 92 PID 4116 wrote to memory of 4240 4116 f383d42f52d226f1280dae8f3c761e6d.exe 92 PID 4116 wrote to memory of 4240 4116 f383d42f52d226f1280dae8f3c761e6d.exe 92 PID 4116 wrote to memory of 4240 4116 f383d42f52d226f1280dae8f3c761e6d.exe 92 PID 4116 wrote to memory of 4240 4116 f383d42f52d226f1280dae8f3c761e6d.exe 92 PID 4116 wrote to memory of 4240 4116 f383d42f52d226f1280dae8f3c761e6d.exe 92 PID 4116 wrote to memory of 4240 4116 f383d42f52d226f1280dae8f3c761e6d.exe 92 PID 4116 wrote to memory of 4240 4116 f383d42f52d226f1280dae8f3c761e6d.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\f383d42f52d226f1280dae8f3c761e6d.exe"C:\Users\Admin\AppData\Local\Temp\f383d42f52d226f1280dae8f3c761e6d.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4116 -
C:\Users\Admin\AppData\Local\Temp\f383d42f52d226f1280dae8f3c761e6d.exeC:\Users\Admin\AppData\Local\Temp\f383d42f52d226f1280dae8f3c761e6d.exe2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4240
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\f383d42f52d226f1280dae8f3c761e6d.exe.log
Filesize1KB
MD59121e6ef340710951d0829deb721bf6a
SHA13354ef7bc1f26e0e64e40907ff9a347df5630e1e
SHA2566fa111c0652755148dffb297e76843ba63eb86dfe92b6fa18a3f715dd4c21baa
SHA512e89216568cb6b64319dd69507875d74ab17d4bf464ea97f82df5f25ca974fa94709f828b951e81039fd442861d08fd92a481ea5917e40ace6df67e0b442e0e57