agenttesla | a551b310da4d06f01f8ea3b0ed90d148e4fb468e2fec58760d8d66ef16d727cd

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-09-2024 01:26

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General

Target

a551b310da4d06f01f8ea3b0ed90d148e4fb468e2fec58760d8d66ef16d727cd.exe
Size

3.5MB
MD5

4ce625b7b44bf706a16f0e49ac6b10f7
SHA1

ca6d78b06ab1550ea435f7bfe18e2fc34045acbe
SHA256

a551b310da4d06f01f8ea3b0ed90d148e4fb468e2fec58760d8d66ef16d727cd
SHA512

a43d05de0409ed95e02ac8bf1440f3393b76c0a8c72d33ab36611b0ca85b9d5726939601d7ce24f74466f4355f53271e1ea4f12c5515646ee12ffdb1f8d9e4af
SSDEEP

98304:7trbTA15UWfEi5UKtbd9XDyxtO79xBCcwO:hc15zEcUKtRZyxtCwct

Score

10^/10

agenttesla redline foz discovery execution infostealer keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
s82.gocheapweb.com
Port:
587
Username:
[email protected]
Password:
london@1759
Email To:
[email protected]

Extracted

Family

redline

Botnet

FOZ

212.162.149.53:2049

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

RedLine payload 2 IoCs

resource	yara_rule
behavioral1/files/0x0007000000016d4a-33.dat	family_redline
behavioral1/memory/2628-42-0x0000000000F40000-0x0000000000F92000-memory.dmp	family_redline

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1032	powershell.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TrojanAIbot.exe.lnk	server_BTC.exe

Executes dropped EXE 4 IoCs

pid	Process
2824	server_BTC.exe
2780	neworigin.exe
2628	build.exe
2988	TrojanAIbot.exe

Loads dropped DLL 4 IoCs

pid	Process
2224	svchost.exe
2224	svchost.exe
2224	svchost.exe
2824	server_BTC.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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
T1552.001
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
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
3	api.ipify.org
4	api.ipify.org

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\alg.exe	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1992 set thread context of 2224	1992	a551b310da4d06f01f8ea3b0ed90d148e4fb468e2fec58760d8d66ef16d727cd.exe	30

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	build.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	neworigin.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server_BTC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TrojanAIbot.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a551b310da4d06f01f8ea3b0ed90d148e4fb468e2fec58760d8d66ef16d727cd.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1508	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1984	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2988	TrojanAIbot.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2780	neworigin.exe
2780	neworigin.exe
1032	powershell.exe
2628	build.exe
2628	build.exe
2628	build.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1992	a551b310da4d06f01f8ea3b0ed90d148e4fb468e2fec58760d8d66ef16d727cd.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeTakeOwnershipPrivilege	2224	svchost.exe
Token: SeDebugPrivilege	2780	neworigin.exe
Token: SeDebugPrivilege	2824	server_BTC.exe
Token: SeDebugPrivilege	1032	powershell.exe
Token: SeDebugPrivilege	2988	TrojanAIbot.exe
Token: SeDebugPrivilege	2628	build.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1992	a551b310da4d06f01f8ea3b0ed90d148e4fb468e2fec58760d8d66ef16d727cd.exe
1992	a551b310da4d06f01f8ea3b0ed90d148e4fb468e2fec58760d8d66ef16d727cd.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1992	a551b310da4d06f01f8ea3b0ed90d148e4fb468e2fec58760d8d66ef16d727cd.exe
1992	a551b310da4d06f01f8ea3b0ed90d148e4fb468e2fec58760d8d66ef16d727cd.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2780	neworigin.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 2224	1992	a551b310da4d06f01f8ea3b0ed90d148e4fb468e2fec58760d8d66ef16d727cd.exe	30
PID 1992 wrote to memory of 2224	1992	a551b310da4d06f01f8ea3b0ed90d148e4fb468e2fec58760d8d66ef16d727cd.exe	30
PID 1992 wrote to memory of 2224	1992	a551b310da4d06f01f8ea3b0ed90d148e4fb468e2fec58760d8d66ef16d727cd.exe	30
PID 1992 wrote to memory of 2224	1992	a551b310da4d06f01f8ea3b0ed90d148e4fb468e2fec58760d8d66ef16d727cd.exe	30
PID 1992 wrote to memory of 2224	1992	a551b310da4d06f01f8ea3b0ed90d148e4fb468e2fec58760d8d66ef16d727cd.exe	30
PID 2224 wrote to memory of 2824	2224	svchost.exe	31
PID 2224 wrote to memory of 2824	2224	svchost.exe	31
PID 2224 wrote to memory of 2824	2224	svchost.exe	31
PID 2224 wrote to memory of 2824	2224	svchost.exe	31
PID 2224 wrote to memory of 2780	2224	svchost.exe	32
PID 2224 wrote to memory of 2780	2224	svchost.exe	32
PID 2224 wrote to memory of 2780	2224	svchost.exe	32
PID 2224 wrote to memory of 2780	2224	svchost.exe	32
PID 2224 wrote to memory of 2628	2224	svchost.exe	33
PID 2224 wrote to memory of 2628	2224	svchost.exe	33
PID 2224 wrote to memory of 2628	2224	svchost.exe	33
PID 2224 wrote to memory of 2628	2224	svchost.exe	33
PID 2824 wrote to memory of 1032	2824	server_BTC.exe	35
PID 2824 wrote to memory of 1032	2824	server_BTC.exe	35
PID 2824 wrote to memory of 1032	2824	server_BTC.exe	35
PID 2824 wrote to memory of 1032	2824	server_BTC.exe	35
PID 2824 wrote to memory of 1984	2824	server_BTC.exe	37
PID 2824 wrote to memory of 1984	2824	server_BTC.exe	37
PID 2824 wrote to memory of 1984	2824	server_BTC.exe	37
PID 2824 wrote to memory of 1984	2824	server_BTC.exe	37
PID 2824 wrote to memory of 2988	2824	server_BTC.exe	39
PID 2824 wrote to memory of 2988	2824	server_BTC.exe	39
PID 2824 wrote to memory of 2988	2824	server_BTC.exe	39
PID 2824 wrote to memory of 2988	2824	server_BTC.exe	39
PID 2824 wrote to memory of 2172	2824	server_BTC.exe	40
PID 2824 wrote to memory of 2172	2824	server_BTC.exe	40
PID 2824 wrote to memory of 2172	2824	server_BTC.exe	40
PID 2824 wrote to memory of 2172	2824	server_BTC.exe	40
PID 2172 wrote to memory of 1508	2172	cmd.exe	42
PID 2172 wrote to memory of 1508	2172	cmd.exe	42
PID 2172 wrote to memory of 1508	2172	cmd.exe	42
PID 2172 wrote to memory of 1508	2172	cmd.exe	42

C:\Users\Admin\AppData\Local\Temp\a551b310da4d06f01f8ea3b0ed90d148e4fb468e2fec58760d8d66ef16d727cd.exe
"C:\Users\Admin\AppData\Local\Temp\a551b310da4d06f01f8ea3b0ed90d148e4fb468e2fec58760d8d66ef16d727cd.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Windows\SysWOW64\svchost.exe
  "C:\Users\Admin\AppData\Local\Temp\a551b310da4d06f01f8ea3b0ed90d148e4fb468e2fec58760d8d66ef16d727cd.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2224
- - C:\Users\Admin\AppData\Local\Temp\server_BTC.exe
    "C:\Users\Admin\AppData\Local\Temp\server_BTC.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2824
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\ACCApi'
      4⤵
      Command and Scripting Interpreter: PowerShell
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1032
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /tn AccSys /tr "C:\Users\Admin\AppData\Roaming\ACCApi\TrojanAIbot.exe" /st 01:31 /du 23:59 /sc daily /ri 1 /f
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:1984
  - - C:\Users\Admin\AppData\Roaming\ACCApi\TrojanAIbot.exe
      "C:\Users\Admin\AppData\Roaming\ACCApi\TrojanAIbot.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: AddClipboardFormatListener
      Suspicious use of AdjustPrivilegeToken
      PID:2988
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp871A.tmp.cmd""
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2172
    - - C:\Windows\SysWOW64\timeout.exe
        
        timeout 6
        5⤵
        System Location Discovery: System Language Discovery
        Delays execution with timeout.exe
        
        PID:1508
- - C:\Users\Admin\AppData\Local\Temp\neworigin.exe
    "C:\Users\Admin\AppData\Local\Temp\neworigin.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2780
- - C:\Users\Admin\AppData\Local\Temp\build.exe
    "C:\Users\Admin\AppData\Local\Temp\build.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp871A.tmp.cmd

Filesize
162B

MD5
b03bd2ef67ecf669a5174145d443941e

SHA1
8667ff9efb9ff32cb46407b6d667e211c425f6a0

SHA256
55c4f9022f3bea718598e5b54d12cd253e1baed4a64d084f934e03360b139a1c

SHA512
399a6ddb6661316878095fb2ea5eb069ad370574c73347cdc7b82558faab817fb4cee6af8de8ab774d0b1d444262998b5e903e741f2d9afc26638ad8f4f570d9

Download Submit
\Users\Admin\AppData\Local\Temp\build.exe

Filesize
300KB

MD5
3b6501feef6196f24163313a9f27dbfd

SHA1
20d60478d3c161c3cacb870aac06be1b43719228

SHA256
0576191c50a1b6afbcaa5cb0512df5b6a8b9bef9739e5308f8e2e965bf9b0fc5

SHA512
338e2c450a0b1c5dfea3cd3662051ce231a53388bc2a6097347f14d3a59257ce3734d934db1992676882b5f4f6a102c7e15b142434575b8970658b4833d23676

Download Submit
\Users\Admin\AppData\Local\Temp\neworigin.exe

Filesize
244KB

MD5
d6a4cf0966d24c1ea836ba9a899751e5

SHA1
392d68c000137b8039155df6bb331d643909e7e7

SHA256
dc441006cb45c2cfac6c521f6cd4c16860615d21081563bd9e368de6f7e8ab6b

SHA512
9fa7aa65b4a0414596d8fd3e7d75a09740a5a6c3db8262f00cb66cd4c8b43d17658c42179422ae0127913deb854db7ed02621d0eeb8ddff1fac221a8e0d1ca35

Download Submit
\Users\Admin\AppData\Local\Temp\server_BTC.exe

Filesize
226KB

MD5
50d015016f20da0905fd5b37d7834823

SHA1
6c39c84acf3616a12ae179715a3369c4e3543541

SHA256
36fe89b3218d2d0bbf865967cdc01b9004e3ba13269909e3d24d7ff209f28fc5

SHA512
55f639006a137732b2fa0527cd1be24b58f5df387ce6aa6b8dd47d1419566f87c95fc1a6b99383e8bd0bcba06cc39ad7b32556496e46d7220c6a7b6d8390f7fc

Download Submit
memory/1032-63-0x0000000002C50000-0x0000000002CAB000-memory.dmp

Filesize
364KB

Download
memory/1992-2-0x0000000004870000-0x0000000005070000-memory.dmp

Filesize
8.0MB

Download
memory/2224-15-0x00000000009D0000-0x0000000000A37000-memory.dmp

Filesize
412KB

Download
memory/2224-14-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/2224-6-0x00000000009D0000-0x0000000000A37000-memory.dmp

Filesize
412KB

Download
memory/2224-39-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/2224-5-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/2224-3-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/2628-42-0x0000000000F40000-0x0000000000F92000-memory.dmp

Filesize
328KB

Download
memory/2780-41-0x0000000000DC0000-0x0000000000E04000-memory.dmp

Filesize
272KB

Download
memory/2824-43-0x0000000001210000-0x000000000124E000-memory.dmp

Filesize
248KB

Download
memory/2988-59-0x00000000012D0000-0x000000000130E000-memory.dmp

Filesize
248KB

Download