agenttesla | aaefeb4e179daa06504580ee2a3c50545ced720e723942feb61999e26679540a

Analysis

max time kernel
137s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
12/04/2022, 01:31

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General

Target
SecuriteInfo.com.Dropped.Generic.NSIS.Injector.A.045E046C.23216.exe
Size 263KB
Sample220412-bxdfwsgcb7
SHA256 aaefeb4e179daa06504580ee2a3c50545ced720e723942feb61999e26679540a
MD5 faa08b6e60ac730ddfc6e4814300d36e
SHA1 1da15eb127f6616e512c594839823374d23992df
SHA512 2430702f567fe2f31ed7ab1f36fbd98b3ccae3f0723b2524392042e59b02625cac5f535914ae5bc15d5991cbef44e89a73ea5d2b76883591fc1ee3114dbd8634
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

AgentTesla Payload 4 IoCs

resource	yara_rule
behavioral2/memory/2276-139-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral2/memory/2276-141-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral2/memory/2276-142-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral2/memory/2276-145-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	dpnnyil.exe

Executes dropped EXE 2 IoCs

pid	Process
552	dpnnyil.exe
2276	dpnnyil.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dpnnyil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dpnnyil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dpnnyil.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 552 set thread context of 2276	552	dpnnyil.exe	80

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1168	2276	WerFault.exe	80

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2276	dpnnyil.exe
2276	dpnnyil.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2276	dpnnyil.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 220 wrote to memory of 552	220	SecuriteInfo.com.Dropped.Generic.NSIS.Injector.A.045E046C.23216.exe	79
PID 220 wrote to memory of 552	220	SecuriteInfo.com.Dropped.Generic.NSIS.Injector.A.045E046C.23216.exe	79
PID 220 wrote to memory of 552	220	SecuriteInfo.com.Dropped.Generic.NSIS.Injector.A.045E046C.23216.exe	79
PID 552 wrote to memory of 2276	552	dpnnyil.exe	80
PID 552 wrote to memory of 2276	552	dpnnyil.exe	80
PID 552 wrote to memory of 2276	552	dpnnyil.exe	80
PID 552 wrote to memory of 2276	552	dpnnyil.exe	80
PID 552 wrote to memory of 2276	552	dpnnyil.exe	80
PID 552 wrote to memory of 2276	552	dpnnyil.exe	80
PID 552 wrote to memory of 2276	552	dpnnyil.exe	80
PID 552 wrote to memory of 2276	552	dpnnyil.exe	80
PID 552 wrote to memory of 2276	552	dpnnyil.exe	80
PID 552 wrote to memory of 2276	552	dpnnyil.exe	80

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dpnnyil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dpnnyil.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Dropped.Generic.NSIS.Injector.A.045E046C.23216.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Dropped.Generic.NSIS.Injector.A.045E046C.23216.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:220
- C:\Users\Admin\AppData\Local\Temp\dpnnyil.exe
  C:\Users\Admin\AppData\Local\Temp\dpnnyil.exe C:\Users\Admin\AppData\Local\Temp\euuetqgt
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:552
- - C:\Users\Admin\AppData\Local\Temp\dpnnyil.exe
    C:\Users\Admin\AppData\Local\Temp\dpnnyil.exe C:\Users\Admin\AppData\Local\Temp\euuetqgt
    3⤵
    - Drops file in Drivers directory
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:2276
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2276 -s 1436
      4⤵
      Program crash
      PID:1168

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2276 -ip 2276
1⤵
PID:2336

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

dpnnyil.exe

Path C:\Users\Admin\AppData\Local\Temp\dpnnyil.exe
Size 5KB
SHA256 7805ecc02794880f38e85ff7e9657916e23a71068b2f7fc032ad57f02de2fe35
MD5 efd649437b778264570092ddb3284dd2
SHA1 a130e078bcede6ac9790461b7e063b30ee80b860
SHA512 4aa7c5a0c37a34de23ffd296ea81b198b88a52e32efd990eb849c279e4207648b6a809f64b8a5030f2719f81fd4640eb4aaca6a8d1ef4d5e7305889a015fa4ee
SSDEEP 96:RTss5FBBQbKEhpGYbP3CGpyGIxBBmyxY:RHRim69ba7QH
MD5 SHA1 SHA512 SSDEEP

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dpnnyil.exe

Path C:\Users\Admin\AppData\Local\Temp\dpnnyil.exe
Size 5KB
SHA256 7805ecc02794880f38e85ff7e9657916e23a71068b2f7fc032ad57f02de2fe35
MD5 efd649437b778264570092ddb3284dd2
SHA1 a130e078bcede6ac9790461b7e063b30ee80b860
SHA512 4aa7c5a0c37a34de23ffd296ea81b198b88a52e32efd990eb849c279e4207648b6a809f64b8a5030f2719f81fd4640eb4aaca6a8d1ef4d5e7305889a015fa4ee
SSDEEP 96:RTss5FBBQbKEhpGYbP3CGpyGIxBBmyxY:RHRim69ba7QH
MD5 SHA1 SHA512 SSDEEP

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dpnnyil.exe

Path C:\Users\Admin\AppData\Local\Temp\dpnnyil.exe
Size 5KB
SHA256 7805ecc02794880f38e85ff7e9657916e23a71068b2f7fc032ad57f02de2fe35
MD5 efd649437b778264570092ddb3284dd2
SHA1 a130e078bcede6ac9790461b7e063b30ee80b860
SHA512 4aa7c5a0c37a34de23ffd296ea81b198b88a52e32efd990eb849c279e4207648b6a809f64b8a5030f2719f81fd4640eb4aaca6a8d1ef4d5e7305889a015fa4ee
SSDEEP 96:RTss5FBBQbKEhpGYbP3CGpyGIxBBmyxY:RHRim69ba7QH
MD5 SHA1 SHA512 SSDEEP

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euuetqgt

Path C:\Users\Admin\AppData\Local\Temp\euuetqgt
Size 5KB
SHA256 2ceeff41abc35bb39027824996cd296904ccf1375d0333f98546cd1d733bca86
MD5 ebc73992eda8997d3b1b354878adace0
SHA1 bb323193868d870691729fb1dd243eef48196501
SHA512 5af27c76070bcd1e658569c82711c07af418951861e08b9fab38233b2e0b6005993ffe4500518956f201d44f2d11291726b049c613d3069284849bd7fa8aca0b
SSDEEP 96:fC3u53swXffhVYqGJoR3KhDUGZC46d9dgf588OD6wM8zQdi4wnkDG1Mu:V3swXRVSSZagznSf5ID3/kdiJkID
MD5 SHA1 SHA512 SSDEEP

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rrakkxw8aal23qx2

Path C:\Users\Admin\AppData\Local\Temp\rrakkxw8aal23qx2
Size 286KB
SHA256 220b98d37886518d84f276318ad50f8d746ab63afc0be5810097c46a2ae366f5
MD5 4e6ad5c205f905cae53e2290d3a22a29
SHA1 f0d1956b084c612481ecc519ab37872d0f312a78
SHA512 5b6e61747b56ec20a26eaf5bbbd3af9277143fdbbb630c6532578f6d330fe6fa5efb71619dc11dda0459314fd17ecbe203da08c9fdebb4841b97c1cc894d70ba
SSDEEP 6144:C36Zyww/fQcPUTfLbrjGlAkC5jfdGyUCD8m6XltZSvA:CKEw2MTf/rjGa5j0yH8m67r
MD5 SHA1 SHA512 SSDEEP

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memory/2276-141-0x0000000000400000-0x000000000044C000-memory.dmp

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memory/2276-139-0x0000000000400000-0x000000000044C000-memory.dmp

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memory/2276-142-0x0000000000400000-0x000000000044C000-memory.dmp

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memory/2276-143-0x0000000005A70000-0x0000000006014000-memory.dmp

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memory/2276-144-0x00000000055C0000-0x0000000005652000-memory.dmp

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memory/2276-145-0x0000000000400000-0x000000000044C000-memory.dmp

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memory/2276-146-0x0000000005830000-0x00000000058CC000-memory.dmp

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memory/2276-147-0x0000000006810000-0x0000000006876000-memory.dmp

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memory/2276-148-0x0000000006910000-0x0000000006960000-memory.dmp

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