Analysis
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max time kernel
138s -
max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
30-04-2024 01:16
Static task
static1
Behavioral task
behavioral1
Sample
FVN001-230824.pdf.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
FVN001-230824.pdf.exe
Resource
win10v2004-20240419-en
General
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Target
FVN001-230824.pdf.exe
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Size
698KB
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MD5
c886350c4259dd843104cd51524770a0
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SHA1
595198caebae2f64c3d008425b782e2d7a5f3c00
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SHA256
36847d6a88e758a4d823a6e100746c1f505678f8c286ddc2e942c2329ccc36ee
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SHA512
e3a7bfe55dab903a28e47be2444ba2b6f68e06602fc28fe0a58fc5d2fd1a045bee5a96eec9f1848a0a221922e91c4b5edd5a0498436916a17ff6c24a04f0056d
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SSDEEP
12288:y+DbgAB778Qe2Y2NW76+Lm+nMO6a4Ti+N5qcQB0omFFUoIglO2+1lyV+Rro7n9m:jgABa+W764t6a4+4LQB0oEFUoIE+1u6k
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.nationalkham.com - Port:
587 - Username:
[email protected] - Password:
kham1234 - 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 packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1624-11-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_EXE_Packed_GEN01 -
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1624-11-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers -
Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1624-11-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL -
Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1624-11-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID -
Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1624-11-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store -
Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1624-11-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients -
Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1624-11-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 26 ip-api.com 23 api.ipify.org 24 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
FVN001-230824.pdf.exedescription pid process target process PID 3540 set thread context of 1624 3540 FVN001-230824.pdf.exe RegSvcs.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
FVN001-230824.pdf.exeRegSvcs.exepid process 3540 FVN001-230824.pdf.exe 3540 FVN001-230824.pdf.exe 3540 FVN001-230824.pdf.exe 3540 FVN001-230824.pdf.exe 1624 RegSvcs.exe 1624 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
FVN001-230824.pdf.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 3540 FVN001-230824.pdf.exe Token: SeDebugPrivilege 1624 RegSvcs.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
FVN001-230824.pdf.exedescription pid process target process PID 3540 wrote to memory of 3664 3540 FVN001-230824.pdf.exe RegSvcs.exe PID 3540 wrote to memory of 3664 3540 FVN001-230824.pdf.exe RegSvcs.exe PID 3540 wrote to memory of 3664 3540 FVN001-230824.pdf.exe RegSvcs.exe PID 3540 wrote to memory of 1168 3540 FVN001-230824.pdf.exe RegSvcs.exe PID 3540 wrote to memory of 1168 3540 FVN001-230824.pdf.exe RegSvcs.exe PID 3540 wrote to memory of 1168 3540 FVN001-230824.pdf.exe RegSvcs.exe PID 3540 wrote to memory of 1624 3540 FVN001-230824.pdf.exe RegSvcs.exe PID 3540 wrote to memory of 1624 3540 FVN001-230824.pdf.exe RegSvcs.exe PID 3540 wrote to memory of 1624 3540 FVN001-230824.pdf.exe RegSvcs.exe PID 3540 wrote to memory of 1624 3540 FVN001-230824.pdf.exe RegSvcs.exe PID 3540 wrote to memory of 1624 3540 FVN001-230824.pdf.exe RegSvcs.exe PID 3540 wrote to memory of 1624 3540 FVN001-230824.pdf.exe RegSvcs.exe PID 3540 wrote to memory of 1624 3540 FVN001-230824.pdf.exe RegSvcs.exe PID 3540 wrote to memory of 1624 3540 FVN001-230824.pdf.exe RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\FVN001-230824.pdf.exe"C:\Users\Admin\AppData\Local\Temp\FVN001-230824.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1624-11-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/1624-19-0x00000000055A0000-0x00000000055B0000-memory.dmpFilesize
64KB
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memory/1624-18-0x0000000074880000-0x0000000075030000-memory.dmpFilesize
7.7MB
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memory/1624-17-0x0000000006AE0000-0x0000000006B30000-memory.dmpFilesize
320KB
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memory/1624-16-0x0000000005760000-0x00000000057C6000-memory.dmpFilesize
408KB
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memory/1624-15-0x00000000055A0000-0x00000000055B0000-memory.dmpFilesize
64KB
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memory/1624-13-0x0000000074880000-0x0000000075030000-memory.dmpFilesize
7.7MB
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memory/3540-4-0x0000000005500000-0x0000000005510000-memory.dmpFilesize
64KB
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memory/3540-8-0x00000000066A0000-0x00000000066B6000-memory.dmpFilesize
88KB
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memory/3540-9-0x00000000066E0000-0x0000000006764000-memory.dmpFilesize
528KB
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memory/3540-10-0x0000000008F20000-0x0000000008FBC000-memory.dmpFilesize
624KB
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memory/3540-7-0x0000000006690000-0x000000000669E000-memory.dmpFilesize
56KB
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memory/3540-6-0x0000000006AF0000-0x0000000006B08000-memory.dmpFilesize
96KB
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memory/3540-14-0x0000000074880000-0x0000000075030000-memory.dmpFilesize
7.7MB
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memory/3540-5-0x00000000054A0000-0x00000000054AA000-memory.dmpFilesize
40KB
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memory/3540-0-0x0000000000A30000-0x0000000000AE4000-memory.dmpFilesize
720KB
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memory/3540-3-0x0000000005520000-0x00000000055B2000-memory.dmpFilesize
584KB
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memory/3540-2-0x0000000005AD0000-0x0000000006074000-memory.dmpFilesize
5.6MB
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memory/3540-1-0x0000000074880000-0x0000000075030000-memory.dmpFilesize
7.7MB