Analysis
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max time kernel
111s -
max time network
69s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
15-04-2022 12:40
Static task
static1
Behavioral task
behavioral1
Sample
48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe
Resource
win10v2004-20220414-en
General
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Target
48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe
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Size
719KB
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MD5
1a3a0c8bdf1d6db781adc5d730668495
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SHA1
5a41a47ffbac1f5fb03520dd79dea0a1de22b00d
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SHA256
48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0
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SHA512
47f19026d24d1a7da6ab551f565bf3d2109109b23723228edfcb8a782407f0cdc1444abcc4651fdd62b1d51293469deca68f075a7eaa59ac5dde945abb9d7693
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.nusatek.com - Port:
587 - Username:
[email protected] - Password:
nusatek187753d - 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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Meta Stealer Stealer
Meta Stealer steals passwords stored in browsers, written in C++.
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AgentTesla Payload 1 IoCs
resource yara_rule behavioral2/memory/440-139-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation 48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3984 set thread context of 440 3984 48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe 79 -
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 4164 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3984 48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe 3984 48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe 3984 48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe 3984 48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe 440 48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe 440 48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3984 48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe Token: SeDebugPrivilege 440 48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 3984 wrote to memory of 4164 3984 48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe 77 PID 3984 wrote to memory of 4164 3984 48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe 77 PID 3984 wrote to memory of 4164 3984 48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe 77 PID 3984 wrote to memory of 440 3984 48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe 79 PID 3984 wrote to memory of 440 3984 48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe 79 PID 3984 wrote to memory of 440 3984 48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe 79 PID 3984 wrote to memory of 440 3984 48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe 79 PID 3984 wrote to memory of 440 3984 48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe 79 PID 3984 wrote to memory of 440 3984 48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe 79 PID 3984 wrote to memory of 440 3984 48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe 79 PID 3984 wrote to memory of 440 3984 48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe 79
Processes
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C:\Users\Admin\AppData\Local\Temp\48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe"C:\Users\Admin\AppData\Local\Temp\48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3984 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jNBsvPueSVkAdn" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD9A7.tmp"2⤵
- Creates scheduled task(s)
PID:4164
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C:\Users\Admin\AppData\Local\Temp\48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:440
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD53d60878992c431939b55606df1a80070
SHA10872f79507ea9cb9ad98907881c3a87c3320c13d
SHA256bf4eaeb0cd6516eec6ed8e139f853ba9f4c7f6ac1cb031c95edddfca29a5fafe
SHA51230cff76454b96089040d2eca3851a28b733165a292b1a187c1e5bea52382437f8e81aba2c78af14dddcd69c95bc99835d4d4540494f3616d65e1287b11d2337d