agenttesla | 0bb23fead3ba01a2ced6b97198a0a12946b4ac4e2c93a39a2286636e484a035a

General

Target

networksec.exe
Size

611KB
MD5

b6c9c4471cac3642ad6c1eed4ab5aa98
SHA1

f0a454f210ce756984dd6ff1517852de9bdd219f
SHA256

0bb23fead3ba01a2ced6b97198a0a12946b4ac4e2c93a39a2286636e484a035a
SHA512

854f8510c764b08ef2f3908a5c842a0604c7e29f8974779f957212820f1d95f7281796cd5c0361b91c24add4f213310654e907c600a269688abfd07472d00ca2
SSDEEP

12288:qLXsIplAtXX7tk4/SAtSDEpGb2rtw1FnVZ2g3bCUBEM/BkT9g3:qLXsIpitXLpzSiG6rS1ZVZ2gLrBDBkTy

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5846767138:AAHbrIUF1epdWlFQ2_64LCd8vdF121y1XGE/

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

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\International\Geo\Nation	networksec.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

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	networksec.exe
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	networksec.exe
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	networksec.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
279	api.ipify.org
280	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4112 set thread context of 3756	4112	networksec.exe	96

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

T1053

pid	Process
1344	schtasks.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
4112	networksec.exe
4112	networksec.exe
4112	networksec.exe
4112	networksec.exe
4112	networksec.exe
4112	networksec.exe
4112	networksec.exe
4112	networksec.exe
4112	networksec.exe
4112	networksec.exe
4112	networksec.exe
4112	networksec.exe
4112	networksec.exe
4112	networksec.exe
4112	networksec.exe
4112	networksec.exe
4112	networksec.exe
3204	powershell.exe
3204	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4112	networksec.exe
Token: SeDebugPrivilege	3204	powershell.exe
Token: SeDebugPrivilege	3756	networksec.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4112 wrote to memory of 3204	4112	networksec.exe	92
PID 4112 wrote to memory of 3204	4112	networksec.exe	92
PID 4112 wrote to memory of 3204	4112	networksec.exe	92
PID 4112 wrote to memory of 1344	4112	networksec.exe	94
PID 4112 wrote to memory of 1344	4112	networksec.exe	94
PID 4112 wrote to memory of 1344	4112	networksec.exe	94
PID 4112 wrote to memory of 3756	4112	networksec.exe	96
PID 4112 wrote to memory of 3756	4112	networksec.exe	96
PID 4112 wrote to memory of 3756	4112	networksec.exe	96
PID 4112 wrote to memory of 3756	4112	networksec.exe	96
PID 4112 wrote to memory of 3756	4112	networksec.exe	96
PID 4112 wrote to memory of 3756	4112	networksec.exe	96
PID 4112 wrote to memory of 3756	4112	networksec.exe	96
PID 4112 wrote to memory of 3756	4112	networksec.exe	96

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	networksec.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	networksec.exe

C:\Users\Admin\AppData\Local\Temp\networksec.exe
"C:\Users\Admin\AppData\Local\Temp\networksec.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4112
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\qUpYWvdB.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3204
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qUpYWvdB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9664.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1344
- C:\Users\Admin\AppData\Local\Temp\networksec.exe
  "C:\Users\Admin\AppData\Local\Temp\networksec.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3756

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cnelu5hm.zgj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9664.tmp

Filesize
1KB

MD5
4d1b6ddd509670b1136845006ea24776

SHA1
681409389689475bb222886aa1a950706aa64768

SHA256
7e692a4634d5fa4f26755f2d8603171d7d9c97508c5f46a5fcffe65ed1a313ec

SHA512
b02766ed223c67ac9dc4f849eef77aedb7b59e2c4dafd4fb99276c2d5988b7d8fd5186abfc7492a8be0c4d76cda272a98c1e41ec083fd5ec9188a65ffd5b2eb5

Download Submit
memory/3204-162-0x00000000052C0000-0x00000000052D0000-memory.dmp

Filesize
64KB

Download
memory/3204-179-0x00000000078A0000-0x00000000078BA000-memory.dmp

Filesize
104KB

Download
memory/3204-186-0x0000000007BC0000-0x0000000007BC8000-memory.dmp

Filesize
32KB

Download
memory/3204-185-0x0000000007BE0000-0x0000000007BFA000-memory.dmp

Filesize
104KB

Download
memory/3204-184-0x0000000007AD0000-0x0000000007ADE000-memory.dmp

Filesize
56KB

Download
memory/3204-144-0x0000000002C90000-0x0000000002CC6000-memory.dmp

Filesize
216KB

Download
memory/3204-181-0x0000000007B20000-0x0000000007BB6000-memory.dmp

Filesize
600KB

Download
memory/3204-147-0x0000000005900000-0x0000000005F28000-memory.dmp

Filesize
6.2MB

Download
memory/3204-180-0x0000000007920000-0x000000000792A000-memory.dmp

Filesize
40KB

Download
memory/3204-149-0x00000000054D0000-0x00000000054F2000-memory.dmp

Filesize
136KB

Download
memory/3204-178-0x0000000007EF0000-0x000000000856A000-memory.dmp

Filesize
6.5MB

Download
memory/3204-150-0x00000000056F0000-0x0000000005756000-memory.dmp

Filesize
408KB

Download
memory/3204-177-0x000000007FCC0000-0x000000007FCD0000-memory.dmp

Filesize
64KB

Download
memory/3204-176-0x00000000052C0000-0x00000000052D0000-memory.dmp

Filesize
64KB

Download
memory/3204-163-0x00000000065A0000-0x00000000065BE000-memory.dmp

Filesize
120KB

Download
memory/3204-164-0x0000000006B70000-0x0000000006BA2000-memory.dmp

Filesize
200KB

Download
memory/3204-175-0x0000000006B50000-0x0000000006B6E000-memory.dmp

Filesize
120KB

Download
memory/3204-165-0x00000000708F0000-0x000000007093C000-memory.dmp

Filesize
304KB

Download
memory/3756-146-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/3756-161-0x0000000005450000-0x0000000005460000-memory.dmp

Filesize
64KB

Download
memory/3756-189-0x0000000005450000-0x0000000005460000-memory.dmp

Filesize
64KB

Download
memory/3756-151-0x00000000052A0000-0x0000000005306000-memory.dmp

Filesize
408KB

Download
memory/3756-183-0x0000000007120000-0x00000000072E2000-memory.dmp

Filesize
1.8MB

Download
memory/3756-182-0x0000000006F00000-0x0000000006F50000-memory.dmp

Filesize
320KB

Download
memory/4112-137-0x0000000004F50000-0x0000000004F60000-memory.dmp

Filesize
64KB

Download
memory/4112-136-0x0000000004F60000-0x0000000004F6A000-memory.dmp

Filesize
40KB

Download
memory/4112-133-0x0000000000500000-0x00000000005A0000-memory.dmp

Filesize
640KB

Download
memory/4112-139-0x0000000008270000-0x000000000830C000-memory.dmp

Filesize
624KB

Download
memory/4112-138-0x0000000004F50000-0x0000000004F60000-memory.dmp

Filesize
64KB

Download
memory/4112-135-0x0000000004F90000-0x0000000005022000-memory.dmp

Filesize
584KB

Download
memory/4112-134-0x0000000005540000-0x0000000005AE4000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads