agenttesla | 0de691a91c2cce2b647aafa0fc5abdbfb84e2a91cda8ff93f4f85f2385007901

Analysis

max time kernel
147s
max time network
170s
platform
windows7_x64
resource
win7v20210408
submitted
23/07/2021, 17:10

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General

Target
9bbecc1749b4de47b175c20ddddd335e.exe
Size 1.2MB
Sample210723-k33d5qewvx
SHA256 0de691a91c2cce2b647aafa0fc5abdbfb84e2a91cda8ff93f4f85f2385007901
MD5 9bbecc1749b4de47b175c20ddddd335e
SHA1 ee1512d73ce9375b7ee1c2fc4ffc5f994f4929ed
SHA512 3aa6002a7149a16a2c3eabed98c4bc65af5683853f231eeb8d70eba0452d9e2e79d76effd5101d1958491dc0498c0f10abc06c42ec02f03ef7792529c4669254
MD5 SHA1 SHA512

Score

10^/10

agenttesla warzonerat infostealer keylogger persistence rat spyware stealer trojan

Malware Config

Extracted

Family

warzonerat

ghjklhgteg.strangled.net:6703

Extracted

Family

agenttesla

https://api.telegram.org/bot1846829589:AAHSsEDTKvDOQ17YrNRY5_FXv5z4mpfGRIc/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 3 IoCs

resource	yara_rule
behavioral1/memory/592-115-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/592-116-0x000000000043774E-mapping.dmp	family_agenttesla
behavioral1/memory/592-119-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Downloads MZ/PE file

Executes dropped EXE 5 IoCs

pid	Process
1008	images.exe
1812	images.exe
1696	.dnyDfftv.exe
1072	.dnyDfftv.exe
592	.dnyDfftv.exe

Sets DLL path for service in the registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

Loads dropped DLL 12 IoCs

pid	Process
1532	9bbecc1749b4de47b175c20ddddd335e.exe
1008	images.exe
1812	images.exe
1392	Process not Found
1696	.dnyDfftv.exe
1696	.dnyDfftv.exe
1812	images.exe
1812	images.exe
1812	images.exe
1812	images.exe
1812	images.exe
1812	images.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

Modifies WinLogon 2 TTPs 4 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts\UserList\xD.sawv = "0"	images.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\AllowMultipleTSSessions = "1"	images.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts\UserList	images.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts	images.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\System32\rfxvmt.dll	images.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1972 set thread context of 1532	1972	9bbecc1749b4de47b175c20ddddd335e.exe	29
PID 1008 set thread context of 1812	1008	images.exe	31
PID 1696 set thread context of 592	1696	.dnyDfftv.exe	40

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft DN1\sqlmap.dll	images.exe
File created	C:\Program Files\Microsoft DN1\rdpwrap.ini	images.exe

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 11 IoCs

pid	Process
1972	9bbecc1749b4de47b175c20ddddd335e.exe
1972	9bbecc1749b4de47b175c20ddddd335e.exe
1008	images.exe
1696	.dnyDfftv.exe
1696	.dnyDfftv.exe
1696	.dnyDfftv.exe
1696	.dnyDfftv.exe
1696	.dnyDfftv.exe
1696	.dnyDfftv.exe
592	.dnyDfftv.exe
592	.dnyDfftv.exe

Suspicious behavior: LoadsDriver 3 IoCs

pid	Process
1392	Process not Found
1392	Process not Found
1392	Process not Found

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1972	9bbecc1749b4de47b175c20ddddd335e.exe
Token: SeDebugPrivilege	1008	images.exe
Token: SeDebugPrivilege	1812	images.exe
Token: SeDebugPrivilege	1696	.dnyDfftv.exe
Token: SeDebugPrivilege	592	.dnyDfftv.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1812	images.exe

Suspicious use of WriteProcessMemory 49 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 1532	1972	9bbecc1749b4de47b175c20ddddd335e.exe	29
PID 1972 wrote to memory of 1532	1972	9bbecc1749b4de47b175c20ddddd335e.exe	29
PID 1972 wrote to memory of 1532	1972	9bbecc1749b4de47b175c20ddddd335e.exe	29
PID 1972 wrote to memory of 1532	1972	9bbecc1749b4de47b175c20ddddd335e.exe	29
PID 1972 wrote to memory of 1532	1972	9bbecc1749b4de47b175c20ddddd335e.exe	29
PID 1972 wrote to memory of 1532	1972	9bbecc1749b4de47b175c20ddddd335e.exe	29
PID 1972 wrote to memory of 1532	1972	9bbecc1749b4de47b175c20ddddd335e.exe	29
PID 1972 wrote to memory of 1532	1972	9bbecc1749b4de47b175c20ddddd335e.exe	29
PID 1972 wrote to memory of 1532	1972	9bbecc1749b4de47b175c20ddddd335e.exe	29
PID 1972 wrote to memory of 1532	1972	9bbecc1749b4de47b175c20ddddd335e.exe	29
PID 1972 wrote to memory of 1532	1972	9bbecc1749b4de47b175c20ddddd335e.exe	29
PID 1532 wrote to memory of 1008	1532	9bbecc1749b4de47b175c20ddddd335e.exe	30
PID 1532 wrote to memory of 1008	1532	9bbecc1749b4de47b175c20ddddd335e.exe	30
PID 1532 wrote to memory of 1008	1532	9bbecc1749b4de47b175c20ddddd335e.exe	30
PID 1532 wrote to memory of 1008	1532	9bbecc1749b4de47b175c20ddddd335e.exe	30
PID 1008 wrote to memory of 1812	1008	images.exe	31
PID 1008 wrote to memory of 1812	1008	images.exe	31
PID 1008 wrote to memory of 1812	1008	images.exe	31
PID 1008 wrote to memory of 1812	1008	images.exe	31
PID 1008 wrote to memory of 1812	1008	images.exe	31
PID 1008 wrote to memory of 1812	1008	images.exe	31
PID 1008 wrote to memory of 1812	1008	images.exe	31
PID 1008 wrote to memory of 1812	1008	images.exe	31
PID 1008 wrote to memory of 1812	1008	images.exe	31
PID 1008 wrote to memory of 1812	1008	images.exe	31
PID 1008 wrote to memory of 1812	1008	images.exe	31
PID 1812 wrote to memory of 1220	1812	images.exe	32
PID 1812 wrote to memory of 1220	1812	images.exe	32
PID 1812 wrote to memory of 1220	1812	images.exe	32
PID 1812 wrote to memory of 1220	1812	images.exe	32
PID 1812 wrote to memory of 1220	1812	images.exe	32
PID 1812 wrote to memory of 1220	1812	images.exe	32
PID 1812 wrote to memory of 1696	1812	images.exe	37
PID 1812 wrote to memory of 1696	1812	images.exe	37
PID 1812 wrote to memory of 1696	1812	images.exe	37
PID 1812 wrote to memory of 1696	1812	images.exe	37
PID 1696 wrote to memory of 1072	1696	.dnyDfftv.exe	39
PID 1696 wrote to memory of 1072	1696	.dnyDfftv.exe	39
PID 1696 wrote to memory of 1072	1696	.dnyDfftv.exe	39
PID 1696 wrote to memory of 1072	1696	.dnyDfftv.exe	39
PID 1696 wrote to memory of 592	1696	.dnyDfftv.exe	40
PID 1696 wrote to memory of 592	1696	.dnyDfftv.exe	40
PID 1696 wrote to memory of 592	1696	.dnyDfftv.exe	40
PID 1696 wrote to memory of 592	1696	.dnyDfftv.exe	40
PID 1696 wrote to memory of 592	1696	.dnyDfftv.exe	40
PID 1696 wrote to memory of 592	1696	.dnyDfftv.exe	40
PID 1696 wrote to memory of 592	1696	.dnyDfftv.exe	40
PID 1696 wrote to memory of 592	1696	.dnyDfftv.exe	40
PID 1696 wrote to memory of 592	1696	.dnyDfftv.exe	40

C:\Users\Admin\AppData\Local\Temp\9bbecc1749b4de47b175c20ddddd335e.exe
"C:\Users\Admin\AppData\Local\Temp\9bbecc1749b4de47b175c20ddddd335e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Users\Admin\AppData\Local\Temp\9bbecc1749b4de47b175c20ddddd335e.exe
  C:\Users\Admin\AppData\Local\Temp\9bbecc1749b4de47b175c20ddddd335e.exe
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1532
- - C:\ProgramData\images.exe
    "C:\ProgramData\images.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1008
  - - C:\Users\Admin\AppData\Local\Temp\images.exe
      C:\Users\Admin\AppData\Local\Temp\images.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Modifies WinLogon
      Drops file in System32 directory
      Drops file in Program Files directory
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1812
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe"
        5⤵
        
        PID:1220
    - - C:\Users\Admin\AppData\Roaming\.dnyDfftv.exe
        
        "C:\Users\Admin\AppData\Roaming\.dnyDfftv.exe"
        5⤵
        Executes dropped EXE
        Loads dropped DLL
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:1696
      - C:\Users\Admin\AppData\Local\Temp\.dnyDfftv.exe
        
        C:\Users\Admin\AppData\Local\Temp\.dnyDfftv.exe
        6⤵
        Executes dropped EXE
        
        PID:1072
      - C:\Users\Admin\AppData\Local\Temp\.dnyDfftv.exe
        
        C:\Users\Admin\AppData\Local\Temp\.dnyDfftv.exe
        6⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:592

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

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/592-119-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/592-115-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/592-121-0x0000000004D00000-0x0000000004D01000-memory.dmp

Download

memory/1008-79-0x0000000004DA0000-0x0000000004DA1000-memory.dmp

Download

memory/1008-77-0x0000000000B10000-0x0000000000B11000-memory.dmp

Download

memory/1008-80-0x0000000004DA5000-0x0000000004DB6000-memory.dmp

Download

memory/1220-95-0x0000000000160000-0x0000000000161000-memory.dmp

Download

memory/1532-69-0x0000000000400000-0x000000000055E000-memory.dmp

Download

memory/1532-71-0x0000000075DA1000-0x0000000075DA3000-memory.dmp

Download

memory/1532-72-0x0000000000400000-0x000000000055E000-memory.dmp

Download

memory/1696-103-0x0000000004D70000-0x0000000004D71000-memory.dmp

Download

memory/1696-111-0x0000000005010000-0x000000000507E000-memory.dmp

Download

memory/1696-106-0x0000000004770000-0x00000000047C6000-memory.dmp

Download

memory/1696-101-0x00000000001C0000-0x00000000001C1000-memory.dmp

Download

memory/1696-104-0x0000000004D75000-0x0000000004D86000-memory.dmp

Download

memory/1812-92-0x0000000000400000-0x000000000055E000-memory.dmp

Download

memory/1812-96-0x0000000003530000-0x0000000003630000-memory.dmp

Download

memory/1812-126-0x00000000045D0000-0x0000000004654000-memory.dmp

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memory/1972-61-0x0000000004CE0000-0x0000000004CE1000-memory.dmp

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memory/1972-59-0x0000000000EB0000-0x0000000000EB1000-memory.dmp

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memory/1972-62-0x0000000004CE5000-0x0000000004CF6000-memory.dmp

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memory/1972-63-0x00000000046B0000-0x0000000004706000-memory.dmp

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memory/1972-68-0x0000000005D90000-0x0000000005E0B000-memory.dmp

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