Analysis
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max time kernel
147s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20231023-en -
resource tags
arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system -
submitted
07-12-2023 19:25
Static task
static1
Behavioral task
behavioral1
Sample
tmp.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
tmp.exe
Resource
win10v2004-20231130-en
General
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Target
tmp.exe
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Size
858KB
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MD5
d7ccd654ae1d4930c48652bc82d37120
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SHA1
2897d0512d2007620dcb6bf050efa33112093133
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SHA256
892d500a68b8bea757537fe603d7c217488f8526ec28f6dd52d85528ef9a1eb2
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SHA512
3fbf2a515053c9fbf7914166ec19f0c9cc3b269b3c1e59c3b28c751d0690ee22ddcd01dd09b0b7870072bf3260688dca8180da6ba26a7100d5fdffe4d5baef03
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SSDEEP
24576:1WNiEnfcWhwAQBWuqPL5olwjtAfXbgypF:6JThtQA/j5oyjtA/9pF
Malware Config
Extracted
agenttesla
Protocol: ftp- Host:
ftp://ftp.siscop.com.co - Port:
21 - Username:
[email protected] - Password:
+5s48Ia2&-(t
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
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Loads dropped DLL 1 IoCs
Processes:
tmp.exepid process 2788 tmp.exe -
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
Processes:
msbuild.exepid process 1916 msbuild.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes:
tmp.exemsbuild.exepid process 2788 tmp.exe 1916 msbuild.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
tmp.exedescription pid process target process PID 2788 set thread context of 1916 2788 tmp.exe msbuild.exe -
Drops file in Program Files directory 1 IoCs
Processes:
tmp.exedescription ioc process File opened for modification C:\Program Files (x86)\victorianerne\censorial\statuetternes\indgrebskriterium\sljfningers.ini tmp.exe -
Drops file in Windows directory 1 IoCs
Processes:
tmp.exedescription ioc process File opened for modification C:\Windows\Fonts\megarhyssa\Bromometry\allerpopulreste\Croissanter.ini tmp.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
msbuild.exepid process 1916 msbuild.exe 1916 msbuild.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
tmp.exepid process 2788 tmp.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
msbuild.exedescription pid process Token: SeDebugPrivilege 1916 msbuild.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
tmp.exedescription pid process target process PID 2788 wrote to memory of 1916 2788 tmp.exe msbuild.exe PID 2788 wrote to memory of 1916 2788 tmp.exe msbuild.exe PID 2788 wrote to memory of 1916 2788 tmp.exe msbuild.exe PID 2788 wrote to memory of 1916 2788 tmp.exe msbuild.exe PID 2788 wrote to memory of 1916 2788 tmp.exe msbuild.exe PID 2788 wrote to memory of 1916 2788 tmp.exe msbuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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\Users\Admin\AppData\Local\Temp\nst97BE.tmp\System.dllFilesize
11KB
MD575ed96254fbf894e42058062b4b4f0d1
SHA1996503f1383b49021eb3427bc28d13b5bbd11977
SHA256a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7
SHA51258174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4
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memory/1916-26-0x0000000073FA0000-0x000000007468E000-memory.dmpFilesize
6.9MB
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memory/1916-25-0x0000000072AC0000-0x0000000072B02000-memory.dmpFilesize
264KB
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memory/1916-32-0x0000000033E20000-0x0000000033E60000-memory.dmpFilesize
256KB
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memory/1916-31-0x0000000073FA0000-0x000000007468E000-memory.dmpFilesize
6.9MB
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memory/1916-28-0x0000000033E20000-0x0000000033E60000-memory.dmpFilesize
256KB
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memory/1916-20-0x0000000000E20000-0x0000000001E41000-memory.dmpFilesize
16.1MB
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memory/1916-22-0x0000000000E20000-0x0000000001E41000-memory.dmpFilesize
16.1MB
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memory/1916-23-0x0000000072AC0000-0x0000000073B22000-memory.dmpFilesize
16.4MB
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memory/1916-21-0x0000000077540000-0x00000000776E9000-memory.dmpFilesize
1.7MB
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memory/1916-24-0x0000000000E20000-0x0000000001E41000-memory.dmpFilesize
16.1MB
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memory/2788-16-0x0000000077540000-0x00000000776E9000-memory.dmpFilesize
1.7MB
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memory/2788-15-0x00000000034F0000-0x0000000004511000-memory.dmpFilesize
16.1MB
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memory/2788-19-0x0000000074D50000-0x0000000074D56000-memory.dmpFilesize
24KB
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memory/2788-18-0x0000000077730000-0x0000000077806000-memory.dmpFilesize
856KB
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memory/2788-17-0x00000000034F0000-0x0000000004511000-memory.dmpFilesize
16.1MB