Analysis
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max time kernel
4294217s -
max time network
127s -
platform
windows7_x64 -
resource
win7-20220310-en -
submitted
14-04-2022 13:42
Static task
static1
Behavioral task
behavioral1
Sample
b709fac7630fa728c21d189818663b2c1459f8881f8674c06dbe300d437b9b07.exe
Resource
win7-20220310-en
Behavioral task
behavioral2
Sample
b709fac7630fa728c21d189818663b2c1459f8881f8674c06dbe300d437b9b07.exe
Resource
win10v2004-20220331-en
General
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Target
b709fac7630fa728c21d189818663b2c1459f8881f8674c06dbe300d437b9b07.exe
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Size
891KB
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MD5
279794744b9f022ebe655c791a8e1578
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SHA1
e45225509f5cafa7add2b6702840fc356a422ba0
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SHA256
b709fac7630fa728c21d189818663b2c1459f8881f8674c06dbe300d437b9b07
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SHA512
ad5091feee766f15a49de75dad3c74dced10b8c7e3d574e16a04f815939feb20e058fe4e8ee51733f172d75d83939d0499999d3a69ddb430dc4abbf26b702e4b
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
t$KMOPJ9
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 6 IoCs
resource yara_rule behavioral1/memory/1284-62-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1284-63-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1284-64-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1284-65-0x00000000004375FE-mapping.dmp family_agenttesla behavioral1/memory/1284-67-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1284-69-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla -
Uses the VBS compiler for execution 1 TTPs
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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1924 set thread context of 1284 1924 b709fac7630fa728c21d189818663b2c1459f8881f8674c06dbe300d437b9b07.exe 31 -
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.
pid Process 692 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1924 b709fac7630fa728c21d189818663b2c1459f8881f8674c06dbe300d437b9b07.exe 1284 vbc.exe 1284 vbc.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1924 b709fac7630fa728c21d189818663b2c1459f8881f8674c06dbe300d437b9b07.exe Token: SeDebugPrivilege 1284 vbc.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 1924 wrote to memory of 692 1924 b709fac7630fa728c21d189818663b2c1459f8881f8674c06dbe300d437b9b07.exe 29 PID 1924 wrote to memory of 692 1924 b709fac7630fa728c21d189818663b2c1459f8881f8674c06dbe300d437b9b07.exe 29 PID 1924 wrote to memory of 692 1924 b709fac7630fa728c21d189818663b2c1459f8881f8674c06dbe300d437b9b07.exe 29 PID 1924 wrote to memory of 692 1924 b709fac7630fa728c21d189818663b2c1459f8881f8674c06dbe300d437b9b07.exe 29 PID 1924 wrote to memory of 1284 1924 b709fac7630fa728c21d189818663b2c1459f8881f8674c06dbe300d437b9b07.exe 31 PID 1924 wrote to memory of 1284 1924 b709fac7630fa728c21d189818663b2c1459f8881f8674c06dbe300d437b9b07.exe 31 PID 1924 wrote to memory of 1284 1924 b709fac7630fa728c21d189818663b2c1459f8881f8674c06dbe300d437b9b07.exe 31 PID 1924 wrote to memory of 1284 1924 b709fac7630fa728c21d189818663b2c1459f8881f8674c06dbe300d437b9b07.exe 31 PID 1924 wrote to memory of 1284 1924 b709fac7630fa728c21d189818663b2c1459f8881f8674c06dbe300d437b9b07.exe 31 PID 1924 wrote to memory of 1284 1924 b709fac7630fa728c21d189818663b2c1459f8881f8674c06dbe300d437b9b07.exe 31 PID 1924 wrote to memory of 1284 1924 b709fac7630fa728c21d189818663b2c1459f8881f8674c06dbe300d437b9b07.exe 31 PID 1924 wrote to memory of 1284 1924 b709fac7630fa728c21d189818663b2c1459f8881f8674c06dbe300d437b9b07.exe 31 PID 1924 wrote to memory of 1284 1924 b709fac7630fa728c21d189818663b2c1459f8881f8674c06dbe300d437b9b07.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\b709fac7630fa728c21d189818663b2c1459f8881f8674c06dbe300d437b9b07.exe"C:\Users\Admin\AppData\Local\Temp\b709fac7630fa728c21d189818663b2c1459f8881f8674c06dbe300d437b9b07.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1924 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NKkBqEEi" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBC2E.tmp"2⤵
- Creates scheduled task(s)
PID:692
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1284
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD5fbfcd1cd87d907a549d899bab025bdf1
SHA1a4899e97f643330324d844cf1f6cf640f5892513
SHA25605b2830cb3f7e598a486509aacc21b157b18ad635ed83f31f765ab57a9979f41
SHA512b8388b5214744a3acfc7e601ab9b93e9d6695b448c669f976e1d36b2b7aee5226c6e4b25e52d5fde8134b69bcfb91ab0550f8e2e588d8e64978de07a44d015ce