agenttesla | 4efcdd9e4c353a68452978906c7471675a6a6cd4e835313a9b88c9171a3a5de2

Analysis

max time kernel
4294182s
max time network
142s
platform
windows7_x64
resource
win7-20220311-en
submitted
14/04/2022, 14:22

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
Overdue_Payments.exe
Size 846KB
Sample220414-rpkg8sffa2
SHA256 c7a6ab6e5b40c85b90ff5ae27e76ac3cfb614c20ff0388bdf949401dfb5dfab0
MD5 8800aaa1cd99b2d824508ea848f6fe7c
SHA1 c839657da9e94e1c2c8d06044f3171cdd38956e0
SHA512 d14e5f4daec11af214d9a5f3ec13dc4a3448f1a86dbbaa62d61ea282a0712ad88f8ae5dfa9828ea77ee16abdb8a1121513984c07ca3c6ef75fc3ff4c480961a2
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol
smtp
Host
webmail.mdist.us
Port
587
Username
[email protected]
Password
Info#4321

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
webmail.mdist.us
Port
587
Username
[email protected]
Password
Info#4321

Signatures

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

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegSvcs.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

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-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Windows\CurrentVersion\Run\tbKkO = "C:\\Users\\Admin\\AppData\\Roaming\\tbKkO\\tbKkO.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1596 set thread context of 1192	1596	Overdue_Payments.exe	29

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
1804	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1596	Overdue_Payments.exe
1192	RegSvcs.exe
1192	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1596	Overdue_Payments.exe
Token: SeDebugPrivilege	1192	RegSvcs.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1596 wrote to memory of 1804	1596	Overdue_Payments.exe	27
PID 1596 wrote to memory of 1804	1596	Overdue_Payments.exe	27
PID 1596 wrote to memory of 1804	1596	Overdue_Payments.exe	27
PID 1596 wrote to memory of 1804	1596	Overdue_Payments.exe	27
PID 1596 wrote to memory of 1192	1596	Overdue_Payments.exe	29
PID 1596 wrote to memory of 1192	1596	Overdue_Payments.exe	29
PID 1596 wrote to memory of 1192	1596	Overdue_Payments.exe	29
PID 1596 wrote to memory of 1192	1596	Overdue_Payments.exe	29
PID 1596 wrote to memory of 1192	1596	Overdue_Payments.exe	29
PID 1596 wrote to memory of 1192	1596	Overdue_Payments.exe	29
PID 1596 wrote to memory of 1192	1596	Overdue_Payments.exe	29
PID 1596 wrote to memory of 1192	1596	Overdue_Payments.exe	29
PID 1596 wrote to memory of 1192	1596	Overdue_Payments.exe	29
PID 1596 wrote to memory of 1192	1596	Overdue_Payments.exe	29
PID 1596 wrote to memory of 1192	1596	Overdue_Payments.exe	29
PID 1596 wrote to memory of 1192	1596	Overdue_Payments.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Overdue_Payments.exe
"C:\Users\Admin\AppData\Local\Temp\Overdue_Payments.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1596
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CbguAttq" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAB6C.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1804
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1192

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

tmpAB6C.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpAB6C.tmp
Size 1KB
SHA256 cc409509ac98fa880466e665aefd18df8035d50a24b6dd64a9f09f0cb2ed8f33
MD5 a7646013bd8a74539e0527cc08301ae8
SHA1 f5acd5ec544e4dbc262c8f5fbdb7924e8224e128
SHA512 d623f3ff78ba79cb7a24bbcb7c19458da09281ce6b19935d0d39e511d2d057e7875fe6c6c029ad458513021aa2cb9cd3624ac34c1a640aceed8f2c72c180de92
MD5 SHA1 SHA512

Submit Download

memory/1192-65-0x0000000000400000-0x000000000046E000-memory.dmp

Download

memory/1192-60-0x0000000000400000-0x000000000046E000-memory.dmp

Download

memory/1192-61-0x0000000000400000-0x000000000046E000-memory.dmp

Download

memory/1192-63-0x0000000000400000-0x000000000046E000-memory.dmp

Download

memory/1192-66-0x0000000000400000-0x000000000046E000-memory.dmp

Download

memory/1192-69-0x0000000000400000-0x000000000046E000-memory.dmp

Download

memory/1192-71-0x0000000000400000-0x000000000046E000-memory.dmp

Download

memory/1596-56-0x00000000054A0000-0x0000000005532000-memory.dmp

Download

memory/1596-57-0x0000000005AD0000-0x0000000005B40000-memory.dmp

Download

memory/1596-55-0x00000000004C0000-0x00000000004CA000-memory.dmp

Download

memory/1596-54-0x0000000000F30000-0x000000000100A000-memory.dmp

Download