agenttesla | 031527224e74b82bf16e639c666134674ecc8a6e648fed2f68255617bd6a3b18

Analysis

max time kernel
142s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2024 20:42

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General

Target

87597.exe
Size

704KB
MD5

7e19235ca4a6192bdace52baa0a40d26
SHA1

1ac8aa96052b0da4f7d1072ca8fee01ade2e9f71
SHA256

ed762437d06ffae4d27baec39379997d8acf7ae6e6e758611793f3fb2fafcee1
SHA512

a67be81bf2487babe021184427d47004791fca072b93ea61efa40d81680132ffcbd96cd78a00a8f316be50d5308ce1d5f2b29dc19be32e91a74a65a63c7705a0
SSDEEP

12288:l3MyvUIZbVWX7Q6cgNMuAx206pm2MGydGcHazvuHw3ItoaI43JYLh2ADli:5TvDBW3cEaeMGpcHazv0tV/OLh2ADl

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.badonfashoin.com/
Port:
21
Username:
[email protected]
Password:
kKsIA9XNV2zG

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral6/memory/4900-18-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	87597.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
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	87597.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	87597.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	87597.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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\hZpzJs = "C:\\Users\\Admin\\AppData\\Roaming\\hZpzJs\\hZpzJs.exe"	87597.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3352 set thread context of 4900	3352	87597.exe	101

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 3 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	87597.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	87597.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
4512	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3352	87597.exe
4900	87597.exe
4900	87597.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4900	87597.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3352	87597.exe
Token: SeDebugPrivilege	4900	87597.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3352 wrote to memory of 4512	3352	87597.exe	99
PID 3352 wrote to memory of 4512	3352	87597.exe	99
PID 3352 wrote to memory of 4512	3352	87597.exe	99
PID 3352 wrote to memory of 4900	3352	87597.exe	101
PID 3352 wrote to memory of 4900	3352	87597.exe	101
PID 3352 wrote to memory of 4900	3352	87597.exe	101
PID 3352 wrote to memory of 4900	3352	87597.exe	101
PID 3352 wrote to memory of 4900	3352	87597.exe	101
PID 3352 wrote to memory of 4900	3352	87597.exe	101
PID 3352 wrote to memory of 4900	3352	87597.exe	101
PID 3352 wrote to memory of 4900	3352	87597.exe	101

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	87597.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	87597.exe

C:\Users\Admin\AppData\Local\Temp\87597.exe
"C:\Users\Admin\AppData\Local\Temp\87597.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3352
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\emoGDf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp878A.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4512
- C:\Users\Admin\AppData\Local\Temp\87597.exe
  "C:\Users\Admin\AppData\Local\Temp\87597.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

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

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\87597.exe.log

Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp878A.tmp

Filesize
1KB

MD5
20ac446e02c7ad709b30814d49bd0dae

SHA1
09641c6f24edc5988cd9517670940f8c9dfb24dd

SHA256
51d370b2ae94b3b2eada1af85937fee34922875f091b08f35e532a11a98d556e

SHA512
837546d1feadb7e77d83a268d6757f880a8b8cd0def53d299839c021f32860469f997a59dbdc52924f728a62301392386487e1623ad1d86803642c7e14f50235

Download Submit
memory/3352-12-0x0000000006A60000-0x0000000006AA0000-memory.dmp

Filesize
256KB

Download
memory/3352-9-0x000000007476E000-0x000000007476F000-memory.dmp

Filesize
4KB

Download
memory/3352-0-0x000000007476E000-0x000000007476F000-memory.dmp

Filesize
4KB

Download
memory/3352-5-0x0000000005200000-0x000000000520A000-memory.dmp

Filesize
40KB

Download
memory/3352-6-0x0000000005360000-0x00000000053B6000-memory.dmp

Filesize
344KB

Download
memory/3352-7-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/3352-8-0x0000000005410000-0x0000000005432000-memory.dmp

Filesize
136KB

Download
memory/3352-21-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/3352-10-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/3352-2-0x00000000050E0000-0x000000000517C000-memory.dmp

Filesize
624KB

Download
memory/3352-4-0x00000000052C0000-0x0000000005352000-memory.dmp

Filesize
584KB

Download
memory/3352-3-0x00000000057D0000-0x0000000005D74000-memory.dmp

Filesize
5.6MB

Download
memory/3352-11-0x00000000069E0000-0x0000000006A68000-memory.dmp

Filesize
544KB

Download
memory/3352-1-0x00000000006C0000-0x0000000000776000-memory.dmp

Filesize
728KB

Download
memory/4900-30-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/4900-22-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/4900-23-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/4900-24-0x0000000005590000-0x00000000055A8000-memory.dmp

Filesize
96KB

Download
memory/4900-25-0x0000000006270000-0x00000000062D6000-memory.dmp

Filesize
408KB

Download
memory/4900-26-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/4900-27-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/4900-29-0x00000000068B0000-0x0000000006900000-memory.dmp

Filesize
320KB

Download
memory/4900-18-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download