agenttesla | e41578bc2d18e9eb7359e062697ecdf2ea32afc0bcbbece876b3b75b406eb619

Analysis

max time kernel
132s
max time network
135s
platform
windows7_x64
resource
win7-en-20211208
submitted
07/02/2022, 15:18

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General

Target
ec4ba8c17a5766247eec0e9f844bb805.exe
Size 2.6MB
Sample220207-spl7hadgb3
SHA256 e41578bc2d18e9eb7359e062697ecdf2ea32afc0bcbbece876b3b75b406eb619
MD5 ec4ba8c17a5766247eec0e9f844bb805
SHA1 75d2ad384f0d2a75c0453fff0461bf0d04ce7f35
SHA512 b92522d49fbbf1db0f422c0acef83076d0cf40e732ea4dc797dd05911435670ac7970ddd6be740757541d7ce6091b7de03ada746588cad4d9228a5785b7f39c1
MD5 SHA1 SHA512

Score

10^/10

agenttesla warzonerat collection infostealer keylogger rat spyware stealer trojan

Malware Config

Extracted

Family

warzonerat

103.133.111.110:5200

Extracted

Family

agenttesla

https://api.telegram.org/bot5001070930:AAGS6zcnpfl-Q3wAAaVHDGdca4bVokv7sYg/sendDocument

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
WarzoneRat, AveMaria
WarzoneRat is a native RAT developed in C++ with multiple plugins sold as a MaaS.
rat infostealer warzonerat

AgentTesla Payload 4 IoCs

resource	yara_rule
behavioral1/memory/1844-82-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1844-81-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1844-83-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1844-84-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Warzone RAT Payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/1380-55-0x0000000000950000-0x0000000000AA4000-memory.dmp	warzonerat
behavioral1/memory/1380-60-0x00000000028C0000-0x00000000032C0000-memory.dmp	warzonerat
behavioral1/memory/1380-65-0x00000000055C0000-0x000000000620A000-memory.dmp	warzonerat

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
1196	FyuaKdh...exe

Loads dropped DLL 7 IoCs

pid	Process
1380	ec4ba8c17a5766247eec0e9f844bb805.exe
1380	ec4ba8c17a5766247eec0e9f844bb805.exe
1380	ec4ba8c17a5766247eec0e9f844bb805.exe
1380	ec4ba8c17a5766247eec0e9f844bb805.exe
1380	ec4ba8c17a5766247eec0e9f844bb805.exe
1380	ec4ba8c17a5766247eec0e9f844bb805.exe
1380	ec4ba8c17a5766247eec0e9f844bb805.exe

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 2 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ec4ba8c17a5766247eec0e9f844bb805.exe
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ec4ba8c17a5766247eec0e9f844bb805.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1196 set thread context of 1844	1196	FyuaKdh...exe	34

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 6 IoCs

pid	Process
1196	FyuaKdh...exe
1196	FyuaKdh...exe
1196	FyuaKdh...exe
1196	FyuaKdh...exe
1844	RegSvcs.exe
1844	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1196	FyuaKdh...exe
Token: SeDebugPrivilege	1844	RegSvcs.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1380 wrote to memory of 1196	1380	ec4ba8c17a5766247eec0e9f844bb805.exe	30
PID 1380 wrote to memory of 1196	1380	ec4ba8c17a5766247eec0e9f844bb805.exe	30
PID 1380 wrote to memory of 1196	1380	ec4ba8c17a5766247eec0e9f844bb805.exe	30
PID 1380 wrote to memory of 1196	1380	ec4ba8c17a5766247eec0e9f844bb805.exe	30
PID 1196 wrote to memory of 364	1196	FyuaKdh...exe	33
PID 1196 wrote to memory of 364	1196	FyuaKdh...exe	33
PID 1196 wrote to memory of 364	1196	FyuaKdh...exe	33
PID 1196 wrote to memory of 364	1196	FyuaKdh...exe	33
PID 1196 wrote to memory of 364	1196	FyuaKdh...exe	33
PID 1196 wrote to memory of 364	1196	FyuaKdh...exe	33
PID 1196 wrote to memory of 364	1196	FyuaKdh...exe	33
PID 1196 wrote to memory of 1844	1196	FyuaKdh...exe	34
PID 1196 wrote to memory of 1844	1196	FyuaKdh...exe	34
PID 1196 wrote to memory of 1844	1196	FyuaKdh...exe	34
PID 1196 wrote to memory of 1844	1196	FyuaKdh...exe	34
PID 1196 wrote to memory of 1844	1196	FyuaKdh...exe	34
PID 1196 wrote to memory of 1844	1196	FyuaKdh...exe	34
PID 1196 wrote to memory of 1844	1196	FyuaKdh...exe	34
PID 1196 wrote to memory of 1844	1196	FyuaKdh...exe	34
PID 1196 wrote to memory of 1844	1196	FyuaKdh...exe	34
PID 1196 wrote to memory of 1844	1196	FyuaKdh...exe	34
PID 1196 wrote to memory of 1844	1196	FyuaKdh...exe	34
PID 1196 wrote to memory of 1844	1196	FyuaKdh...exe	34

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ec4ba8c17a5766247eec0e9f844bb805.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ec4ba8c17a5766247eec0e9f844bb805.exe

C:\Users\Admin\AppData\Local\Temp\ec4ba8c17a5766247eec0e9f844bb805.exe
"C:\Users\Admin\AppData\Local\Temp\ec4ba8c17a5766247eec0e9f844bb805.exe"
1⤵
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1380
- C:\Users\Admin\AppData\Roaming\FyuaKdh...exe
  "C:\Users\Admin\AppData\Roaming\FyuaKdh...exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1196
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:364
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1844

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

memory/1196-66-0x0000000000A60000-0x0000000000B32000-memory.dmp

Download

memory/1196-76-0x0000000000C40000-0x0000000000C41000-memory.dmp

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memory/1196-77-0x0000000000300000-0x000000000030C000-memory.dmp

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memory/1196-78-0x0000000005090000-0x000000000513A000-memory.dmp

Download

memory/1380-65-0x00000000055C0000-0x000000000620A000-memory.dmp

Download

memory/1380-54-0x0000000075601000-0x0000000075603000-memory.dmp

Download

memory/1380-60-0x00000000028C0000-0x00000000032C0000-memory.dmp

Download

memory/1380-55-0x0000000000950000-0x0000000000AA4000-memory.dmp

Download

memory/1844-79-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/1844-80-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/1844-82-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/1844-81-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/1844-83-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/1844-84-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/1844-85-0x00000000022B0000-0x00000000043B0000-memory.dmp

Download