agenttesla | fab7bef714427ef5922e986e9c723bf1e45bce7cb647a42c58e23bd4b3216421

Analysis

max time kernel
112s
max time network
70s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
01-02-2023 16:16

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General

Target

Nuevo pedido 7887979-800898.bat.exe
Size

6KB
MD5

206115e1488682cfc64176f95462e76b
SHA1

a237be7d066a71bd063956c11f2f0d5f476e823a
SHA256

fab7bef714427ef5922e986e9c723bf1e45bce7cb647a42c58e23bd4b3216421
SHA512

790745d708e18fcfa45135088745c49094f42f8bef54bfd9954c8752599de1ce02f6ea118724ad5a3921d1d405ebaa32201b7495048093d4903707381c8fb375
SSDEEP

96:WAwa5N9p+ZNLDApFY1jAdhkxgqEQGnQUzNt:WAwa5grL+OEyxgfFn/

Score

10^/10

agenttesla purecrypter downloader keylogger loader persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.mgcpakistan.com/
Port:
21
Username:
[email protected]
Password:
boygirl123456

Signatures

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

Detect PureCrypter injector 1 IoCs

loader

resource	yara_rule
behavioral1/memory/860-56-0x0000000006190000-0x0000000006416000-memory.dmp	family_purecrypter

PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
loader downloader purecrypter

AgentTesla payload 6 IoCs

resource	yara_rule
behavioral1/memory/1976-72-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1976-73-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1976-74-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1976-75-0x00000000004374CE-mapping.dmp	family_agenttesla
behavioral1/memory/1976-79-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1976-77-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\Unurkb = "\"C:\\Users\\Admin\\AppData\\Roaming\\Zgcjjewavix\\Unurkb.exe\""	Nuevo pedido 7887979-800898.bat.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 860 set thread context of 1976	860	Nuevo pedido 7887979-800898.bat.exe	36

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

System Information Discovery
T1082

Gathers network information 2 TTPs 2 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command-Line Interface

T1059

pid	Process
1516	ipconfig.exe
1392	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1732	powershell.exe
860	Nuevo pedido 7887979-800898.bat.exe
1976	Nuevo pedido 7887979-800898.bat.exe
1976	Nuevo pedido 7887979-800898.bat.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	860	Nuevo pedido 7887979-800898.bat.exe
Token: SeDebugPrivilege	1732	powershell.exe
Token: SeDebugPrivilege	1976	Nuevo pedido 7887979-800898.bat.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 860 wrote to memory of 596	860	Nuevo pedido 7887979-800898.bat.exe	27
PID 860 wrote to memory of 596	860	Nuevo pedido 7887979-800898.bat.exe	27
PID 860 wrote to memory of 596	860	Nuevo pedido 7887979-800898.bat.exe	27
PID 860 wrote to memory of 596	860	Nuevo pedido 7887979-800898.bat.exe	27
PID 596 wrote to memory of 1516	596	cmd.exe	29
PID 596 wrote to memory of 1516	596	cmd.exe	29
PID 596 wrote to memory of 1516	596	cmd.exe	29
PID 596 wrote to memory of 1516	596	cmd.exe	29
PID 860 wrote to memory of 1732	860	Nuevo pedido 7887979-800898.bat.exe	30
PID 860 wrote to memory of 1732	860	Nuevo pedido 7887979-800898.bat.exe	30
PID 860 wrote to memory of 1732	860	Nuevo pedido 7887979-800898.bat.exe	30
PID 860 wrote to memory of 1732	860	Nuevo pedido 7887979-800898.bat.exe	30
PID 860 wrote to memory of 1192	860	Nuevo pedido 7887979-800898.bat.exe	32
PID 860 wrote to memory of 1192	860	Nuevo pedido 7887979-800898.bat.exe	32
PID 860 wrote to memory of 1192	860	Nuevo pedido 7887979-800898.bat.exe	32
PID 860 wrote to memory of 1192	860	Nuevo pedido 7887979-800898.bat.exe	32
PID 1192 wrote to memory of 1392	1192	cmd.exe	34
PID 1192 wrote to memory of 1392	1192	cmd.exe	34
PID 1192 wrote to memory of 1392	1192	cmd.exe	34
PID 1192 wrote to memory of 1392	1192	cmd.exe	34
PID 860 wrote to memory of 1980	860	Nuevo pedido 7887979-800898.bat.exe	35
PID 860 wrote to memory of 1980	860	Nuevo pedido 7887979-800898.bat.exe	35
PID 860 wrote to memory of 1980	860	Nuevo pedido 7887979-800898.bat.exe	35
PID 860 wrote to memory of 1980	860	Nuevo pedido 7887979-800898.bat.exe	35
PID 860 wrote to memory of 1976	860	Nuevo pedido 7887979-800898.bat.exe	36
PID 860 wrote to memory of 1976	860	Nuevo pedido 7887979-800898.bat.exe	36
PID 860 wrote to memory of 1976	860	Nuevo pedido 7887979-800898.bat.exe	36
PID 860 wrote to memory of 1976	860	Nuevo pedido 7887979-800898.bat.exe	36
PID 860 wrote to memory of 1976	860	Nuevo pedido 7887979-800898.bat.exe	36
PID 860 wrote to memory of 1976	860	Nuevo pedido 7887979-800898.bat.exe	36
PID 860 wrote to memory of 1976	860	Nuevo pedido 7887979-800898.bat.exe	36
PID 860 wrote to memory of 1976	860	Nuevo pedido 7887979-800898.bat.exe	36
PID 860 wrote to memory of 1976	860	Nuevo pedido 7887979-800898.bat.exe	36

C:\Users\Admin\AppData\Local\Temp\Nuevo pedido 7887979-800898.bat.exe
"C:\Users\Admin\AppData\Local\Temp\Nuevo pedido 7887979-800898.bat.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:860
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ipconfig/release
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:596
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /release
    3⤵
    - Gathers network information
    PID:1516
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAANQAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1732
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ipconfig/renew
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1192
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /renew
    3⤵
    - Gathers network information
    PID:1392
- C:\Users\Admin\AppData\Local\Temp\Nuevo pedido 7887979-800898.bat.exe
  "C:\Users\Admin\AppData\Local\Temp\Nuevo pedido 7887979-800898.bat.exe"
  2⤵
  PID:1980
- C:\Users\Admin\AppData\Local\Temp\Nuevo pedido 7887979-800898.bat.exe
  "C:\Users\Admin\AppData\Local\Temp\Nuevo pedido 7887979-800898.bat.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1976

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Command-Line Interface

T1059

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/860-55-0x0000000074DE1000-0x0000000074DE3000-memory.dmp

Filesize
8KB

Download
memory/860-56-0x0000000006190000-0x0000000006416000-memory.dmp

Filesize
2.5MB

Download
memory/860-54-0x00000000002A0000-0x00000000002A8000-memory.dmp

Filesize
32KB

Download
memory/860-68-0x00000000055A0000-0x00000000055F8000-memory.dmp

Filesize
352KB

Download
memory/1732-64-0x000000006EE60000-0x000000006F40B000-memory.dmp

Filesize
5.7MB

Download
memory/1732-63-0x000000006EE60000-0x000000006F40B000-memory.dmp

Filesize
5.7MB

Download
memory/1732-62-0x000000006EE60000-0x000000006F40B000-memory.dmp

Filesize
5.7MB

Download
memory/1976-69-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1976-70-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1976-72-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1976-73-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1976-74-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1976-79-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1976-77-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download