agenttesla | d55aa6bea84dd9982c908b020d9529679c6219f9da29a794af64894eb9f092dc

Analysis

max time kernel
137s
max time network
149s
platform
windows10_x64
resource
win10-en
submitted
20/09/2021, 08:52

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General

Target
TT653GH?xcod..exe
Size 774KB
Sample210920-kssjpadeb6
SHA256 d55aa6bea84dd9982c908b020d9529679c6219f9da29a794af64894eb9f092dc
MD5 b32bd1feccaec53b1bd1f1be43c6836e
SHA1 429e24de4d9858d2991469ec233b87d7c16e5f57
SHA512 06c73b61910c3da3d40228a074f4a1d28d5911055bb4b05fd1fe799dcd4e5667c4e341bd43adcd240544386d31b7f10b87c76dff992c065b6202f91263822792
MD5 SHA1 SHA512

Score

10^/10

agenttesla netwire botnet keylogger persistence rat spyware stealer trojan

Malware Config

Extracted

Family

netwire

betterday.duckdns.org:5345

Attributes

activex_autorun
false
activex_key
copy_executable
true
delete_original
false
host_id
Village Back
install_path
%AppData%\Install\Host.exe
keylogger_dir
%AppData%\Logs\
lock_executable
false
mutex
offline_keylogger
true
password
Password
registry_autorun
true
startup_name
NetWire
use_mutex
false

Extracted

Family

agenttesla

https://api.telegram.org/bot1698102386:AAHWYbuf-rLmgfOsAgCnA_t8ncjPXSF5S8c/sendDocument

Signatures

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

NetWire RAT payload 7 IoCs

rat

resource	yara_rule
behavioral2/memory/3680-120-0x0000000000400000-0x0000000000433000-memory.dmp	netwire
behavioral2/memory/3680-121-0x000000000040242D-mapping.dmp	netwire
behavioral2/memory/3680-130-0x0000000000400000-0x0000000000433000-memory.dmp	netwire
behavioral2/files/0x000400000001aaf1-139.dat	netwire
behavioral2/files/0x000400000001aaf1-138.dat	netwire
behavioral2/files/0x000500000001aaef-142.dat	netwire
behavioral2/memory/3872-144-0x0000000005570000-0x0000000005A6E000-memory.dmp	netwire

Netwire
Netwire is a RAT with main functionalities focused password stealing and keylogging, but also includes remote control capabilities as well.
botnet stealer netwire

AgentTesla Payload 4 IoCs

resource	yara_rule
behavioral2/files/0x000400000001aaed-126.dat	family_agenttesla
behavioral2/files/0x000400000001aaed-127.dat	family_agenttesla
behavioral2/files/0x000400000001aaf0-131.dat	family_agenttesla
behavioral2/files/0x000400000001aaf0-133.dat	family_agenttesla

Downloads MZ/PE file

Executes dropped EXE 6 IoCs

pid	Process
3924	ngf.exe
2616	Host.exe
3872	49.exe
3932	22.exe
788	maur.exe
1044	Host.exe

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

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	Host.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000\Software\Microsoft\Windows\CurrentVersion\Run\NetWire = "C:\\Users\\Admin\\AppData\\Roaming\\Install\\Host.exe"	Host.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000\Software\Microsoft\Windows\CurrentVersion\Run\cay = "C:\\Users\\Admin\\AppData\\Local\\Temp\\cay\\cay.exe"	22.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000\Software\Microsoft\Windows\CurrentVersion\Run\uyp = "C:\\Users\\Admin\\AppData\\Local\\Temp\\uyp\\uyp.exe"	49.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3556 set thread context of 3680	3556	TT653GH_xcod..exe	70

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3556	TT653GH_xcod..exe
3556	TT653GH_xcod..exe
3556	TT653GH_xcod..exe
3556	TT653GH_xcod..exe
3932	22.exe
3932	22.exe
3872	49.exe
3872	49.exe

Suspicious behavior: SetClipboardViewer 1 IoCs

pid	Process
3872	49.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3556	TT653GH_xcod..exe
Token: SeDebugPrivilege	3932	22.exe
Token: SeDebugPrivilege	3872	49.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3872	49.exe
3932	22.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 3556 wrote to memory of 3924	3556	TT653GH_xcod..exe	69
PID 3556 wrote to memory of 3924	3556	TT653GH_xcod..exe	69
PID 3556 wrote to memory of 3924	3556	TT653GH_xcod..exe	69
PID 3556 wrote to memory of 3680	3556	TT653GH_xcod..exe	70
PID 3556 wrote to memory of 3680	3556	TT653GH_xcod..exe	70
PID 3556 wrote to memory of 3680	3556	TT653GH_xcod..exe	70
PID 3556 wrote to memory of 3680	3556	TT653GH_xcod..exe	70
PID 3556 wrote to memory of 3680	3556	TT653GH_xcod..exe	70
PID 3556 wrote to memory of 3680	3556	TT653GH_xcod..exe	70
PID 3556 wrote to memory of 3680	3556	TT653GH_xcod..exe	70
PID 3556 wrote to memory of 3680	3556	TT653GH_xcod..exe	70
PID 3556 wrote to memory of 3680	3556	TT653GH_xcod..exe	70
PID 3556 wrote to memory of 3680	3556	TT653GH_xcod..exe	70
PID 3556 wrote to memory of 3680	3556	TT653GH_xcod..exe	70
PID 3680 wrote to memory of 2616	3680	MSBuild.exe	71
PID 3680 wrote to memory of 2616	3680	MSBuild.exe	71
PID 3680 wrote to memory of 2616	3680	MSBuild.exe	71
PID 3924 wrote to memory of 3872	3924	ngf.exe	73
PID 3924 wrote to memory of 3872	3924	ngf.exe	73
PID 3924 wrote to memory of 3872	3924	ngf.exe	73
PID 3924 wrote to memory of 3932	3924	ngf.exe	74
PID 3924 wrote to memory of 3932	3924	ngf.exe	74
PID 3924 wrote to memory of 3932	3924	ngf.exe	74
PID 3924 wrote to memory of 788	3924	ngf.exe	75
PID 3924 wrote to memory of 788	3924	ngf.exe	75
PID 3924 wrote to memory of 788	3924	ngf.exe	75
PID 788 wrote to memory of 1044	788	maur.exe	76
PID 788 wrote to memory of 1044	788	maur.exe	76
PID 788 wrote to memory of 1044	788	maur.exe	76

C:\Users\Admin\AppData\Local\Temp\TT653GH_xcod..exe
"C:\Users\Admin\AppData\Local\Temp\TT653GH_xcod..exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3556
- C:\Users\Admin\AppData\Local\Temp\ngf.exe
  "C:\Users\Admin\AppData\Local\Temp\ngf.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:3924
- - C:\Users\Admin\AppData\Local\Temp\49.exe
    "C:\Users\Admin\AppData\Local\Temp\49.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: SetClipboardViewer
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:3872
- - C:\Users\Admin\AppData\Local\Temp\22.exe
    "C:\Users\Admin\AppData\Local\Temp\22.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:3932
- - C:\Users\Admin\AppData\Local\Temp\maur.exe
    "C:\Users\Admin\AppData\Local\Temp\maur.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:788
  - - C:\Users\Admin\AppData\Roaming\Install\Host.exe
      "C:\Users\Admin\AppData\Roaming\Install\Host.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      PID:1044
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3680
- - C:\Users\Admin\AppData\Roaming\Install\Host.exe
    "C:\Users\Admin\AppData\Roaming\Install\Host.exe"
    3⤵
    - Executes dropped EXE
    PID:2616

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/2616-132-0x0000000003180000-0x0000000003181000-memory.dmp

Download

memory/3556-116-0x0000000000A91000-0x0000000000A92000-memory.dmp

Download

memory/3556-115-0x0000000000A90000-0x0000000000A91000-memory.dmp

Download

memory/3680-130-0x0000000000400000-0x0000000000433000-memory.dmp

Download

memory/3680-120-0x0000000000400000-0x0000000000433000-memory.dmp

Download

memory/3872-145-0x00000000056B0000-0x00000000056B1000-memory.dmp

Download

memory/3872-143-0x0000000005610000-0x0000000005611000-memory.dmp

Download

memory/3872-149-0x0000000000D80000-0x0000000000D81000-memory.dmp

Download

memory/3872-148-0x0000000006470000-0x0000000006471000-memory.dmp

Download

memory/3872-140-0x0000000005A70000-0x0000000005A71000-memory.dmp

Download

memory/3872-146-0x0000000006160000-0x0000000006161000-memory.dmp

Download

memory/3872-135-0x0000000000C40000-0x0000000000C41000-memory.dmp

Download

memory/3872-144-0x0000000005570000-0x0000000005A6E000-memory.dmp

Download

memory/3924-128-0x0000000002B90000-0x0000000002B91000-memory.dmp

Download

memory/3932-147-0x0000000003111000-0x0000000003112000-memory.dmp

Download

memory/3932-134-0x0000000003110000-0x0000000003111000-memory.dmp

Download