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Analysis
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max time kernel
87s -
max time network
92s -
platform
windows7_x64 -
resource
win7 -
submitted
08/07/2020, 16:45
Static task
static1
Behavioral task
behavioral1
Sample
Invoice.exe
Resource
win7
General
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Target
Invoice.exe
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Size
680KB
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MD5
e0d2b0152e85cc80c38f9ee1e2726091
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SHA1
3bdc9346620798e6c7906cd652573ac5d62aa67a
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SHA256
c019898749d270142cdd678c69e6adb31f328b16fd7c40166644eb8bcac7f15e
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SHA512
4115fb1bc0c48ba795c171bd9eebac61209ff285a2194be2d314d9f91741b1648cf1c0980db2ff89e54697ca0cb0e9244e331d231408332408aae52afb992902
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.yandex.ru - Port:
587 - Username:
[email protected] - Password:
HYBRID@@@
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 3 IoCs
resource yara_rule behavioral1/memory/1020-3-0x0000000000400000-0x00000000004A4000-memory.dmp family_agenttesla behavioral1/memory/1020-4-0x00000000003B0000-0x00000000003FC000-memory.dmp family_agenttesla behavioral1/memory/1020-6-0x0000000000310000-0x0000000000356000-memory.dmp family_agenttesla -
resource yara_rule behavioral1/memory/1020-0-0x0000000000400000-0x00000000004A4000-memory.dmp upx behavioral1/memory/1020-2-0x0000000000400000-0x00000000004A4000-memory.dmp upx behavioral1/memory/1020-3-0x0000000000400000-0x00000000004A4000-memory.dmp upx -
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
description pid Process procid_target PID 1496 set thread context of 1020 1496 Invoice.exe 24 -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1496 Invoice.exe 1020 Invoice.exe 1020 Invoice.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1496 Invoice.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1020 Invoice.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1496 wrote to memory of 1020 1496 Invoice.exe 24 PID 1496 wrote to memory of 1020 1496 Invoice.exe 24 PID 1496 wrote to memory of 1020 1496 Invoice.exe 24 PID 1496 wrote to memory of 1020 1496 Invoice.exe 24
Processes
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C:\Users\Admin\AppData\Local\Temp\Invoice.exe"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1496 -
C:\Users\Admin\AppData\Local\Temp\Invoice.exe"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1020
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