Analysis
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max time kernel
125s -
max time network
112s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
22-01-2021 07:07
Static task
static1
Behavioral task
behavioral1
Sample
RFQ #6553928_PDF.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
RFQ #6553928_PDF.exe
Resource
win10v20201028
General
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Target
RFQ #6553928_PDF.exe
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Size
1003KB
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MD5
126a06711f90b3bb00d5cdf657bbd381
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SHA1
50c06ee54498c3a960baf9aca1f62909edf1981c
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SHA256
20795651735a3b9de9a7cd1ec01ea78c8acd43c9cb67dda8628cf1559bdcba1c
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SHA512
ccf017de3b41b4b7372651aeaf73f0ca25fdf7ab6075634d5cd1600801a3fe438ce3c86ceccb5de7a31f626286dd75ef02dbc9ec3f0019541eb980a76d8191fc
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot1513271204:AAFn4hPg2fp2zgo9ieA28FrdaCkpwxApdbA/sendDocument
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/4360-14-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/4360-15-0x000000000043777E-mapping.dmp family_agenttesla -
Suspicious use of SetThreadContext 1 IoCs
Processes:
RFQ #6553928_PDF.exedescription pid process target process PID 4720 set thread context of 4360 4720 RFQ #6553928_PDF.exe MSBuild.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 7 IoCs
Processes:
RFQ #6553928_PDF.exeMSBuild.exepid process 4720 RFQ #6553928_PDF.exe 4720 RFQ #6553928_PDF.exe 4720 RFQ #6553928_PDF.exe 4720 RFQ #6553928_PDF.exe 4720 RFQ #6553928_PDF.exe 4360 MSBuild.exe 4360 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
RFQ #6553928_PDF.exeMSBuild.exedescription pid process Token: SeDebugPrivilege 4720 RFQ #6553928_PDF.exe Token: SeDebugPrivilege 4360 MSBuild.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
RFQ #6553928_PDF.exedescription pid process target process PID 4720 wrote to memory of 3096 4720 RFQ #6553928_PDF.exe schtasks.exe PID 4720 wrote to memory of 3096 4720 RFQ #6553928_PDF.exe schtasks.exe PID 4720 wrote to memory of 3096 4720 RFQ #6553928_PDF.exe schtasks.exe PID 4720 wrote to memory of 4384 4720 RFQ #6553928_PDF.exe MSBuild.exe PID 4720 wrote to memory of 4384 4720 RFQ #6553928_PDF.exe MSBuild.exe PID 4720 wrote to memory of 4384 4720 RFQ #6553928_PDF.exe MSBuild.exe PID 4720 wrote to memory of 4084 4720 RFQ #6553928_PDF.exe MSBuild.exe PID 4720 wrote to memory of 4084 4720 RFQ #6553928_PDF.exe MSBuild.exe PID 4720 wrote to memory of 4084 4720 RFQ #6553928_PDF.exe MSBuild.exe PID 4720 wrote to memory of 4360 4720 RFQ #6553928_PDF.exe MSBuild.exe PID 4720 wrote to memory of 4360 4720 RFQ #6553928_PDF.exe MSBuild.exe PID 4720 wrote to memory of 4360 4720 RFQ #6553928_PDF.exe MSBuild.exe PID 4720 wrote to memory of 4360 4720 RFQ #6553928_PDF.exe MSBuild.exe PID 4720 wrote to memory of 4360 4720 RFQ #6553928_PDF.exe MSBuild.exe PID 4720 wrote to memory of 4360 4720 RFQ #6553928_PDF.exe MSBuild.exe PID 4720 wrote to memory of 4360 4720 RFQ #6553928_PDF.exe MSBuild.exe PID 4720 wrote to memory of 4360 4720 RFQ #6553928_PDF.exe MSBuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\RFQ #6553928_PDF.exe"C:\Users\Admin\AppData\Local\Temp\RFQ #6553928_PDF.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uZAqSbOWQIwH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB28D.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"{path}"2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"{path}"2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmpB28D.tmpMD5
5a99a379ae99223c95197eef6b27b507
SHA1e0c621bbdf919cf66ed58ac2198a1d71686c4700
SHA25629a81c12a3627f5b647574215b318c95931c8f3f103078cf2ff8bac81bda9241
SHA512b647dd19d2540e46e3465af0c9e26a2ef199c0c601e9fde759e3f6717d79557eacae00c410ac3ca65595039243f6ace73106a9873a657c22a8879e48edead601
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memory/3096-12-0x0000000000000000-mapping.dmp
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memory/4360-26-0x0000000003021000-0x0000000003022000-memory.dmpFilesize
4KB
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memory/4360-23-0x00000000062A0000-0x00000000062A1000-memory.dmpFilesize
4KB
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memory/4360-22-0x0000000005BE0000-0x0000000005BE1000-memory.dmpFilesize
4KB
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memory/4360-21-0x0000000003020000-0x0000000003021000-memory.dmpFilesize
4KB
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memory/4360-16-0x0000000073530000-0x0000000073C1E000-memory.dmpFilesize
6MB
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memory/4360-15-0x000000000043777E-mapping.dmp
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memory/4360-14-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/4720-7-0x0000000004A80000-0x0000000004A81000-memory.dmpFilesize
4KB
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memory/4720-11-0x0000000007070000-0x0000000007071000-memory.dmpFilesize
4KB
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memory/4720-10-0x0000000006F20000-0x0000000006FC6000-memory.dmpFilesize
664KB
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memory/4720-9-0x0000000004D20000-0x0000000004D2E000-memory.dmpFilesize
56KB
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memory/4720-8-0x0000000004AB0000-0x0000000004AB1000-memory.dmpFilesize
4KB
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memory/4720-2-0x0000000073530000-0x0000000073C1E000-memory.dmpFilesize
6MB
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memory/4720-6-0x0000000004B00000-0x0000000004B01000-memory.dmpFilesize
4KB
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memory/4720-5-0x0000000005000000-0x0000000005001000-memory.dmpFilesize
4KB
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memory/4720-3-0x0000000000130000-0x0000000000131000-memory.dmpFilesize
4KB