agenttesla | 2ad2b641db99003656d22d4e31f884ebb887d3ffe7a92e8338b37a7aad60a711

Analysis

max time kernel
74s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
09/01/2023, 15:24

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General

Target
NEW PURCHASE enquiry.exe
Size 1.0MB
Sample230109-ss225aab71
SHA256 2ad2b641db99003656d22d4e31f884ebb887d3ffe7a92e8338b37a7aad60a711
MD5 c27a42c763aee1bc42099a346c67112b
SHA1 a88dc399b93106d67240b38301403c83fc9e5cea
SHA512 af0049bd7ff61d1d8782022eee220397e053f64f2d534d324ede32714fad8ec9cc0db045afb275b9009ae1c0ce6268620cd3a2014d9cb041ea434c9c8a8b4ebf
SSDEEP 24576:aVovByJoarZ6NXt1TYxGDJZQnK8EERA5pGgWuu:aWvBsVgN9KeZQKFBbu
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.dmstech.in
Port
587
Username
[email protected]
Password
0]6F9Az.pqfd
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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zBwkauB = "C:\\Users\\Admin\\AppData\\Roaming\\zBwkauB\\zBwkauB.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1636 set thread context of 952	1636	NEW PURCHASE enquiry.exe	30

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
1500	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1636	NEW PURCHASE enquiry.exe
952	RegSvcs.exe
952	RegSvcs.exe
952	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1636	NEW PURCHASE enquiry.exe
Token: SeDebugPrivilege	952	RegSvcs.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1636 wrote to memory of 1500	1636	NEW PURCHASE enquiry.exe	28
PID 1636 wrote to memory of 1500	1636	NEW PURCHASE enquiry.exe	28
PID 1636 wrote to memory of 1500	1636	NEW PURCHASE enquiry.exe	28
PID 1636 wrote to memory of 1500	1636	NEW PURCHASE enquiry.exe	28
PID 1636 wrote to memory of 952	1636	NEW PURCHASE enquiry.exe	30
PID 1636 wrote to memory of 952	1636	NEW PURCHASE enquiry.exe	30
PID 1636 wrote to memory of 952	1636	NEW PURCHASE enquiry.exe	30
PID 1636 wrote to memory of 952	1636	NEW PURCHASE enquiry.exe	30
PID 1636 wrote to memory of 952	1636	NEW PURCHASE enquiry.exe	30
PID 1636 wrote to memory of 952	1636	NEW PURCHASE enquiry.exe	30
PID 1636 wrote to memory of 952	1636	NEW PURCHASE enquiry.exe	30
PID 1636 wrote to memory of 952	1636	NEW PURCHASE enquiry.exe	30
PID 1636 wrote to memory of 952	1636	NEW PURCHASE enquiry.exe	30
PID 1636 wrote to memory of 952	1636	NEW PURCHASE enquiry.exe	30
PID 1636 wrote to memory of 952	1636	NEW PURCHASE enquiry.exe	30
PID 1636 wrote to memory of 952	1636	NEW PURCHASE enquiry.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\NEW PURCHASE enquiry.exe
"C:\Users\Admin\AppData\Local\Temp\NEW PURCHASE enquiry.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1636
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RGKAumxgn" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7DD8.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1500
- 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:952

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

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Downloads

tmp7DD8.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp7DD8.tmp
Size 1KB
SHA256 6a5076c7324112a36227bb74807aa7243afa2505d8b39adcc37ade8ddd1b1bb4
MD5 58c27fdcc371e28a4718c36ec60291c3
SHA1 cfecb4ad7095bcde061a6869b223a51a7e4726af
SHA512 ba1b3e524b6dd6bf94fc333a59e9825b65e95635fee46d804774eb5c9083f560757e2b1e5ec2f4601b52bbab49816cbea312b8dac0bac420446cf7be030618c0
MD5 SHA1 SHA512

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memory/952-64-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/952-66-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/952-71-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/952-69-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/952-65-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/952-61-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/952-62-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1636-54-0x0000000000BC0000-0x0000000000CC6000-memory.dmp

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memory/1636-55-0x00000000762F1000-0x00000000762F3000-memory.dmp

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memory/1636-56-0x0000000000350000-0x0000000000362000-memory.dmp

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memory/1636-58-0x0000000000740000-0x000000000077C000-memory.dmp

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memory/1636-57-0x0000000005360000-0x00000000053E2000-memory.dmp

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