Analysis
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max time kernel
130s -
max time network
121s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
15-09-2021 06:49
Static task
static1
Behavioral task
behavioral1
Sample
Invoice.doc.exe
Resource
win7-en
Behavioral task
behavioral2
Sample
Invoice.doc.exe
Resource
win10v20210408
General
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Target
Invoice.doc.exe
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Size
860KB
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MD5
6701efac5ff142914e5b353571045b83
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SHA1
614b96a8c0f1f4732b5948b9ca8b8262edc9318a
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SHA256
4f9e6d626a2aa193431ca948dde9a3e526124f88dec8ed465ec7785d99368432
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SHA512
dad3059096af254b6e24a5f4d565de0c351093f50a58204195195e8e25f5b3818404ca49421e4f1e71a0b61da6d93a718079b6da01d2bee0d30a3cceef870c61
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.esquiresweaters.com - Port:
587 - Username:
imam@esquiresweaters.com - Password:
Esquire@#2078
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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.NET Reactor proctector 1 IoCs
Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.
Processes:
resource yara_rule behavioral2/memory/2884-132-0x00000000053E0000-0x00000000058DE000-memory.dmp net_reactor -
AgentTesla Payload 4 IoCs
Processes:
resource yara_rule behavioral2/memory/2884-125-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/2884-126-0x000000000043764E-mapping.dmp family_agenttesla behavioral2/memory/2884-132-0x00000000053E0000-0x00000000058DE000-memory.dmp family_agenttesla behavioral2/memory/2884-137-0x00000000053E0000-0x00000000058DE000-memory.dmp family_agenttesla -
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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Suspicious use of SetThreadContext 1 IoCs
Processes:
Invoice.doc.exedescription pid process target process PID 568 set thread context of 2884 568 Invoice.doc.exe Invoice.doc.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
Invoice.doc.exepid process 2884 Invoice.doc.exe 2884 Invoice.doc.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Invoice.doc.exedescription pid process Token: SeDebugPrivilege 2884 Invoice.doc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Invoice.doc.exepid process 2884 Invoice.doc.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
Invoice.doc.exedescription pid process target process PID 568 wrote to memory of 2884 568 Invoice.doc.exe Invoice.doc.exe PID 568 wrote to memory of 2884 568 Invoice.doc.exe Invoice.doc.exe PID 568 wrote to memory of 2884 568 Invoice.doc.exe Invoice.doc.exe PID 568 wrote to memory of 2884 568 Invoice.doc.exe Invoice.doc.exe PID 568 wrote to memory of 2884 568 Invoice.doc.exe Invoice.doc.exe PID 568 wrote to memory of 2884 568 Invoice.doc.exe Invoice.doc.exe PID 568 wrote to memory of 2884 568 Invoice.doc.exe Invoice.doc.exe PID 568 wrote to memory of 2884 568 Invoice.doc.exe Invoice.doc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Invoice.doc.exe"C:\Users\Admin\AppData\Local\Temp\Invoice.doc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Invoice.doc.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Invoice.doc.exe.logMD5
90acfd72f14a512712b1a7380c0faf60
SHA140ba4accb8faa75887e84fb8e38d598dc8cf0f12
SHA25620806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86
SHA51229dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9
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memory/568-119-0x0000000004F50000-0x0000000004F51000-memory.dmpFilesize
4KB
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memory/568-122-0x0000000000D80000-0x0000000000D8E000-memory.dmpFilesize
56KB
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memory/568-118-0x0000000004EA0000-0x0000000004EA1000-memory.dmpFilesize
4KB
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memory/568-114-0x0000000000320000-0x0000000000321000-memory.dmpFilesize
4KB
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memory/568-124-0x000000000B940000-0x000000000B97C000-memory.dmpFilesize
240KB
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memory/568-121-0x0000000005050000-0x0000000005051000-memory.dmpFilesize
4KB
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memory/568-117-0x00000000053A0000-0x00000000053A1000-memory.dmpFilesize
4KB
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memory/568-123-0x00000000088B0000-0x0000000008933000-memory.dmpFilesize
524KB
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memory/568-120-0x0000000004EA0000-0x000000000539E000-memory.dmpFilesize
5.0MB
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memory/568-116-0x0000000004E00000-0x0000000004E01000-memory.dmpFilesize
4KB
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memory/2884-126-0x000000000043764E-mapping.dmp
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memory/2884-125-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/2884-132-0x00000000053E0000-0x00000000058DE000-memory.dmpFilesize
5.0MB
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memory/2884-133-0x0000000005840000-0x0000000005841000-memory.dmpFilesize
4KB
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memory/2884-134-0x00000000060D0000-0x00000000060D1000-memory.dmpFilesize
4KB
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memory/2884-137-0x00000000053E0000-0x00000000058DE000-memory.dmpFilesize
5.0MB