agenttesla | 6d033582691fbfed1308554793024626bcc07d07e904aca0d26f93f2a083893d

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
20-09-2023 07:22

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General

Target

INV01562.pdf.exe
Size

997KB
MD5

68903a58dc8c61f5b9c13ddf753be9d5
SHA1

1f91c9345407ec20fe08243ffea1db32c8d7fb27
SHA256

6d033582691fbfed1308554793024626bcc07d07e904aca0d26f93f2a083893d
SHA512

00deaad5b6265600c733547f83c58bf668db884656aff28af6a4dcc671fa5764d568551bcc3e37970d132374488163f9dcb4b3eb30f621e6836e6cb7c41a7536
SSDEEP

12288:ADZ08bolxtBHkQMGKx58qTt5MpfMBARLd5h15sHogdEkBPbQpqJ/d2TU0:TtmsKxgpfMCRR5h15sIg6kBPYQP0

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.frontierfulfillment.com.my
Port:
587
Username:
[email protected]
Password:
5_8B6kjVm
Email To:
[email protected]

Signatures

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000\Software\Microsoft\Windows\CurrentVersion\Run\FndrE = "C:\\Users\\Admin\\AppData\\Roaming\\FndrE\\FndrE.exe"	RegSvcs.exe

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
2	api.ipify.org
3	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2064 set thread context of 2656	2064	INV01562.pdf.exe	32

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

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/Job

T1053

pid	Process
3068	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2064	INV01562.pdf.exe
2064	INV01562.pdf.exe
2656	RegSvcs.exe
2656	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2064	INV01562.pdf.exe
Token: SeDebugPrivilege	2656	RegSvcs.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2064 wrote to memory of 3068	2064	INV01562.pdf.exe	28
PID 2064 wrote to memory of 3068	2064	INV01562.pdf.exe	28
PID 2064 wrote to memory of 3068	2064	INV01562.pdf.exe	28
PID 2064 wrote to memory of 3068	2064	INV01562.pdf.exe	28
PID 2064 wrote to memory of 2800	2064	INV01562.pdf.exe	30
PID 2064 wrote to memory of 2800	2064	INV01562.pdf.exe	30
PID 2064 wrote to memory of 2800	2064	INV01562.pdf.exe	30
PID 2064 wrote to memory of 2800	2064	INV01562.pdf.exe	30
PID 2064 wrote to memory of 2800	2064	INV01562.pdf.exe	30
PID 2064 wrote to memory of 2800	2064	INV01562.pdf.exe	30
PID 2064 wrote to memory of 2800	2064	INV01562.pdf.exe	30
PID 2064 wrote to memory of 2700	2064	INV01562.pdf.exe	31
PID 2064 wrote to memory of 2700	2064	INV01562.pdf.exe	31
PID 2064 wrote to memory of 2700	2064	INV01562.pdf.exe	31
PID 2064 wrote to memory of 2700	2064	INV01562.pdf.exe	31
PID 2064 wrote to memory of 2700	2064	INV01562.pdf.exe	31
PID 2064 wrote to memory of 2700	2064	INV01562.pdf.exe	31
PID 2064 wrote to memory of 2700	2064	INV01562.pdf.exe	31
PID 2064 wrote to memory of 2656	2064	INV01562.pdf.exe	32
PID 2064 wrote to memory of 2656	2064	INV01562.pdf.exe	32
PID 2064 wrote to memory of 2656	2064	INV01562.pdf.exe	32
PID 2064 wrote to memory of 2656	2064	INV01562.pdf.exe	32
PID 2064 wrote to memory of 2656	2064	INV01562.pdf.exe	32
PID 2064 wrote to memory of 2656	2064	INV01562.pdf.exe	32
PID 2064 wrote to memory of 2656	2064	INV01562.pdf.exe	32
PID 2064 wrote to memory of 2656	2064	INV01562.pdf.exe	32
PID 2064 wrote to memory of 2656	2064	INV01562.pdf.exe	32
PID 2064 wrote to memory of 2656	2064	INV01562.pdf.exe	32
PID 2064 wrote to memory of 2656	2064	INV01562.pdf.exe	32
PID 2064 wrote to memory of 2656	2064	INV01562.pdf.exe	32

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\INV01562.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\INV01562.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2064
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KmeWsT" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA831.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3068
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  PID:2800
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  PID:2700
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2656

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA831.tmp

Filesize
1KB

MD5
dbd60d62455ef33b66da17c90e8c095f

SHA1
5aabe546074d6fa361dbb316ee534342a7e6751e

SHA256
97b94a4be1fc0e60956134e13635a4e8035d38bd4d3a68f662fbcbad9e52ef5a

SHA512
9ce9c0632e636021af0a597ee61560970449548b531b1a1690601cc9534ab5dee4373958d773d01148435d9a1df2a19380709b19966bad7c4b2d16bca5603406

Download Submit
memory/2064-0-0x0000000000F10000-0x0000000001010000-memory.dmp

Filesize
1024KB

Download
memory/2064-1-0x0000000074320000-0x0000000074A0E000-memory.dmp

Filesize
6.9MB

Download
memory/2064-2-0x0000000004CE0000-0x0000000004D20000-memory.dmp

Filesize
256KB

Download
memory/2064-3-0x0000000000310000-0x000000000031C000-memory.dmp

Filesize
48KB

Download
memory/2064-4-0x0000000074320000-0x0000000074A0E000-memory.dmp

Filesize
6.9MB

Download
memory/2064-5-0x0000000004CE0000-0x0000000004D20000-memory.dmp

Filesize
256KB

Download
memory/2064-6-0x0000000004FD0000-0x000000000504E000-memory.dmp

Filesize
504KB

Download
memory/2064-7-0x0000000000BC0000-0x0000000000C02000-memory.dmp

Filesize
264KB

Download
memory/2064-22-0x0000000074320000-0x0000000074A0E000-memory.dmp

Filesize
6.9MB

Download
memory/2656-12-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2656-14-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2656-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2656-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2656-17-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2656-19-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2656-11-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2656-21-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2656-23-0x0000000074320000-0x0000000074A0E000-memory.dmp

Filesize
6.9MB

Download
memory/2656-24-0x0000000004910000-0x0000000004950000-memory.dmp

Filesize
256KB

Download
memory/2656-26-0x0000000074320000-0x0000000074A0E000-memory.dmp

Filesize
6.9MB

Download