agenttesla | 8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e | Triage

Analysis

max time kernel
139s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
07/06/2023, 12:20 UTC

Sharing

Report Analysis Logs

General

Target

8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe
Size

723KB
MD5

d968e6844283d3ab39f87324efc55fe4
SHA1

c12db994aa1c313bdc89a37d9aaad0c21c6019a0
SHA256

8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e
SHA512

4d56c138c169fa56068a0538729eaaf1482885609c0f91f23b0f0239ee99e27a865b99f58285c4bc052675c0aeabf96ae079e42eb8140da3ec356292082dbdfa
SSDEEP

12288:HKfPSljSjhQUMuVGBI8yCiOuwxoeN537HO:HcQTUMGGBcCiO/tO

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.wecaresvc.com
Port:
587
Username:
edward.chen@wecaresvc.com
Password:
u9367gk8qc

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.wecaresvc.com
Port:
587
Username:
edward.chen@wecaresvc.com
Password:
u9367gk8qc
Email To:
ellisjemie2b@gmail.com

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation	8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe

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
T1081
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
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

Email Collection

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NJLOSe = "C:\\Users\\Admin\\AppData\\Roaming\\NJLOSe\\NJLOSe.exe"	8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4564 set thread context of 4044	4564	8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe	87

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.

Scheduled Task

pid	Process
4420	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4564	8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4564	8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe
Token: SeDebugPrivilege	4044	8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4564 wrote to memory of 4420	4564	8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe	85
PID 4564 wrote to memory of 4420	4564	8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe	85
PID 4564 wrote to memory of 4420	4564	8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe	85
PID 4564 wrote to memory of 4044	4564	8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe	87
PID 4564 wrote to memory of 4044	4564	8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe	87
PID 4564 wrote to memory of 4044	4564	8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe	87
PID 4564 wrote to memory of 4044	4564	8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe	87
PID 4564 wrote to memory of 4044	4564	8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe	87
PID 4564 wrote to memory of 4044	4564	8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe	87
PID 4564 wrote to memory of 4044	4564	8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe	87
PID 4564 wrote to memory of 4044	4564	8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe	87

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe

C:\Users\Admin\AppData\Local\Temp\8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe
"C:\Users\Admin\AppData\Local\Temp\8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4564
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qqtHrPy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp530.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4420
- C:\Users\Admin\AppData\Local\Temp\8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4044

Network

DNS

13.86.106.20.in-addr.arpa

Remote address:

8.8.8.8:53

Request

13.86.106.20.in-addr.arpa

IN PTR

Response
DNS

76.32.126.40.in-addr.arpa

Remote address:

8.8.8.8:53

Request

76.32.126.40.in-addr.arpa

IN PTR

Response
DNS

134.32.126.40.in-addr.arpa

Remote address:

8.8.8.8:53

Request

134.32.126.40.in-addr.arpa

IN PTR

Response
DNS

mail.wecaresvc.com

8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe

Remote address:

8.8.8.8:53

Request

mail.wecaresvc.com

IN A

Response

mail.wecaresvc.com

IN CNAME

wecaresvc.com

wecaresvc.com

IN A

103.138.106.17
DNS

17.106.138.103.in-addr.arpa

Remote address:

8.8.8.8:53

Request

17.106.138.103.in-addr.arpa

IN PTR

Response
DNS

104.219.191.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

104.219.191.52.in-addr.arpa

IN PTR

Response
DNS

0.77.109.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

0.77.109.52.in-addr.arpa

IN PTR

Response
DNS

217.106.137.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

217.106.137.52.in-addr.arpa

IN PTR

Response

52.242.101.226:443

260 B
5
103.138.106.17:587

mail.wecaresvc.com

smtp-submission

8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe

8.3kB
7.3kB
29
32
20.189.173.5:443

322 B
7
52.242.101.226:443

260 B
5
52.242.101.226:443

260 B
5
52.242.101.226:443

260 B
5
52.242.101.226:443

260 B
5
52.242.101.226:443

260 B
5
93.184.220.29:80

322 B
7
52.242.101.226:443

260 B
5
52.242.101.226:443

260 B
5
52.242.101.226:443

260 B
5
52.242.101.226:443

260 B
5

8.8.8.8:53

13.86.106.20.in-addr.arpa

dns

71 B
157 B
1
1

DNS Request

13.86.106.20.in-addr.arpa
8.8.8.8:53

76.32.126.40.in-addr.arpa

dns

71 B
157 B
1
1

DNS Request

76.32.126.40.in-addr.arpa
8.8.8.8:53

134.32.126.40.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

134.32.126.40.in-addr.arpa
8.8.8.8:53

mail.wecaresvc.com

dns

8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe

64 B
94 B
1
1

DNS Request

mail.wecaresvc.com

DNS Response

103.138.106.17
8.8.8.8:53

17.106.138.103.in-addr.arpa

dns

73 B
131 B
1
1

DNS Request

17.106.138.103.in-addr.arpa
8.8.8.8:53

104.219.191.52.in-addr.arpa

dns

73 B
147 B
1
1

DNS Request

104.219.191.52.in-addr.arpa
8.8.8.8:53

0.77.109.52.in-addr.arpa

dns

70 B
144 B
1
1

DNS Request

0.77.109.52.in-addr.arpa
8.8.8.8:53

217.106.137.52.in-addr.arpa

dns

73 B
147 B
1
1

DNS Request

217.106.137.52.in-addr.arpa

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

Defense Evasion

Modify Registry

Credential Access

Credentials in Files

Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\8f4a4002934b09591e8b6f95a9ec20ff0ae4ddc48dd869bd76fc9d9f9c59f72e.exe.log

Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp530.tmp

Filesize
1KB

MD5
3720d9e2599577bc32acb80e9ad88d67

SHA1
be339c5e0b6436c0d36dc642d703e2b76865cbb0

SHA256
89ab80ecda1cc8ea32e5366e0db9021fddf23b71e673b7ad74cadee54881b294

SHA512
b5d2320c43debeac1bb0d1f12a34b39caf59a0781aed9a9253ef25d3cb0bc19423a4d982b498a0de82b2cbf27bad41f63016cebd6feb8c3ab9d472b9bbdbd956

Download Submit
memory/4044-148-0x0000000005610000-0x0000000005620000-memory.dmp

Filesize
64KB

Download
memory/4044-144-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/4044-158-0x0000000005610000-0x0000000005620000-memory.dmp

Filesize
64KB

Download
memory/4044-151-0x00000000063A0000-0x0000000006562000-memory.dmp

Filesize
1.8MB

Download
memory/4044-150-0x0000000006180000-0x00000000061D0000-memory.dmp

Filesize
320KB

Download
memory/4044-147-0x0000000005380000-0x00000000053E6000-memory.dmp

Filesize
408KB

Download
memory/4564-139-0x00000000051A0000-0x00000000051B0000-memory.dmp

Filesize
64KB

Download
memory/4564-135-0x0000000005620000-0x0000000005BC4000-memory.dmp

Filesize
5.6MB

Download
memory/4564-134-0x0000000004FD0000-0x000000000506C000-memory.dmp

Filesize
624KB

Download
memory/4564-140-0x00000000051A0000-0x00000000051B0000-memory.dmp

Filesize
64KB

Download
memory/4564-133-0x0000000000680000-0x000000000073C000-memory.dmp

Filesize
752KB

Download
memory/4564-136-0x0000000005070000-0x0000000005102000-memory.dmp

Filesize
584KB

Download
memory/4564-138-0x00000000052C0000-0x0000000005316000-memory.dmp

Filesize
344KB

Download
memory/4564-137-0x0000000004FA0000-0x0000000004FAA000-memory.dmp

Filesize
40KB

Download