Analysis
- max time kernel
115s - max time network
8s - platform
windows7_x64 - resource
win7v20210410 - submitted
12/05/2021, 09:54
Static task
static1
Behavioral task
behavioral1
Sample
Revised Invoice pdf.exe
Resource
win7v20210410
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
Revised Invoice pdf.exe
Resource
win10v20210410
0 signatures
0 seconds
General
- Target Revised Invoice pdf.exe
- Size 975KB
- Sample210512-7vsdvccft6
- SHA256 77ccf33c233dd2f10f699699ca25eff2c6da889962f898b244244a1df4ebc806
- MD5 7b359b685d78963d26f7edb9dd07e4c0
- SHA1 841585401e3e1b48378f11dd02b3552533d39afb
- SHA512 241aa5224b4139fa7cfc70e2de525ac5f28f16e3289bdab18344410913072adcc55810c6cad32a62288ebea2125f8058e9cbbb3bb6fbfc1b36dc2d0aacd36b83
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Family
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agenttesla
Credentials
-
Protocol
smtp
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Host
mail.esquiresweaters.com
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Port
587
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Username
-
Password
Esquire@#2078
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
resource yara_rule behavioral1/memory/1060-65-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1060-66-0x000000000043752E-mapping.dmp family_agenttesla - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1996 set thread context of 1060 1996 Revised Invoice pdf.exe 31 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1008 schtasks.exe - Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1996 Revised Invoice pdf.exe 1060 Revised Invoice pdf.exe 1060 Revised Invoice pdf.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1996 Revised Invoice pdf.exe Token: SeDebugPrivilege 1060 Revised Invoice pdf.exe - Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 1996 wrote to memory of 1008 1996 Revised Invoice pdf.exe 29 PID 1996 wrote to memory of 1008 1996 Revised Invoice pdf.exe 29 PID 1996 wrote to memory of 1008 1996 Revised Invoice pdf.exe 29 PID 1996 wrote to memory of 1008 1996 Revised Invoice pdf.exe 29 PID 1996 wrote to memory of 1060 1996 Revised Invoice pdf.exe 31 PID 1996 wrote to memory of 1060 1996 Revised Invoice pdf.exe 31 PID 1996 wrote to memory of 1060 1996 Revised Invoice pdf.exe 31 PID 1996 wrote to memory of 1060 1996 Revised Invoice pdf.exe 31 PID 1996 wrote to memory of 1060 1996 Revised Invoice pdf.exe 31 PID 1996 wrote to memory of 1060 1996 Revised Invoice pdf.exe 31 PID 1996 wrote to memory of 1060 1996 Revised Invoice pdf.exe 31 PID 1996 wrote to memory of 1060 1996 Revised Invoice pdf.exe 31 PID 1996 wrote to memory of 1060 1996 Revised Invoice pdf.exe 31 PID 1060 wrote to memory of 696 1060 Revised Invoice pdf.exe 32 PID 1060 wrote to memory of 696 1060 Revised Invoice pdf.exe 32 PID 1060 wrote to memory of 696 1060 Revised Invoice pdf.exe 32 PID 1060 wrote to memory of 696 1060 Revised Invoice pdf.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\Revised Invoice pdf.exe"C:\Users\Admin\AppData\Local\Temp\Revised Invoice pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1996 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\utILOuxEOwQEy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA6DA.tmp"2⤵
- Creates scheduled task(s)
PID:1008
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C:\Users\Admin\AppData\Local\Temp\Revised Invoice pdf.exe"C:\Users\Admin\AppData\Local\Temp\Revised Invoice pdf.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1060 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exedw20.exe -x -s 5163⤵PID:696
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