agenttesla | 8ef717d4973d795dceff550c9ef05e8546c9176a82beb12ac1fabd962d04fddd

General

Target

76.exe
Size

6KB
MD5

4df280fea800291ab943f10909194e74
SHA1

022a5f042e3db04009dad89006532618fbed8808
SHA256

026b11037329ad5ff8cda17668d30b59366df051ab09ab35790f2d2e8324a85d
SHA512

b39f2a0796e0cc915a68d284f5c8b2eb7737368e8aba1fcbac754c5f653d26e9286436bb033e2e9fdd46015dd8d5fc4716984541518f89f394aa3dd013d263e8
SSDEEP

96:Giete33Zahzeo7yycaw1H+AUn2YQrtbszNt:ets3uz1bw1HelQrxW

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	76.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-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	76.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	76.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	76.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Xadhwhcq = "\"C:\\Users\\Admin\\AppData\\Roaming\\Gnmcxv\\Xadhwhcq.exe\""	76.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\App = "C:\\Users\\Admin\\AppData\\Roaming\\App\\App.exe"	76.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
18	api.ipify.org
19	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4220 set thread context of 1300	4220	76.exe	89

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
5088	powershell.exe
5088	powershell.exe
1300	76.exe
1300	76.exe
1300	76.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4220	76.exe
Token: SeDebugPrivilege	5088	powershell.exe
Token: SeDebugPrivilege	1300	76.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4220 wrote to memory of 5088	4220	76.exe	81
PID 4220 wrote to memory of 5088	4220	76.exe	81
PID 4220 wrote to memory of 5088	4220	76.exe	81
PID 4220 wrote to memory of 1300	4220	76.exe	89
PID 4220 wrote to memory of 1300	4220	76.exe	89
PID 4220 wrote to memory of 1300	4220	76.exe	89
PID 4220 wrote to memory of 1300	4220	76.exe	89
PID 4220 wrote to memory of 1300	4220	76.exe	89
PID 4220 wrote to memory of 1300	4220	76.exe	89
PID 4220 wrote to memory of 1300	4220	76.exe	89
PID 4220 wrote to memory of 1300	4220	76.exe	89

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	76.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	76.exe

C:\Users\Admin\AppData\Local\Temp\76.exe
"C:\Users\Admin\AppData\Local\Temp\76.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4220
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5088
- C:\Users\Admin\AppData\Local\Temp\76.exe
  C:\Users\Admin\AppData\Local\Temp\76.exe
  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:1300

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\76.exe.log

Filesize
1KB

MD5
e87e48b105757e1c7563d1c719059733

SHA1
28a3f2b2e0672da2b531f4757d2b20b53032dafc

SHA256
0aaf22dc84cc3fcfe53de7ccfed8e662247dfb7f1a9967032c88790d0c663461

SHA512
bf19c5743143aee914a453c41189c722c9b90a5b8bf299cecf3e1f97656d32cd209ecb74da8aebc89bb41c27d189f73aaaabbc64fe383410c95dc76ad4218968

Download Submit
memory/1300-149-0x0000000006A90000-0x0000000006A9A000-memory.dmp

Filesize
40KB

Download
memory/1300-148-0x0000000006770000-0x0000000006802000-memory.dmp

Filesize
584KB

Download
memory/1300-147-0x0000000006610000-0x0000000006660000-memory.dmp

Filesize
320KB

Download
memory/1300-146-0x0000000004E10000-0x0000000004EAC000-memory.dmp

Filesize
624KB

Download
memory/1300-145-0x0000000005490000-0x0000000005A34000-memory.dmp

Filesize
5.6MB

Download
memory/1300-143-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4220-133-0x0000000005DC0000-0x0000000005DE2000-memory.dmp

Filesize
136KB

Download
memory/4220-132-0x0000000000980000-0x0000000000988000-memory.dmp

Filesize
32KB

Download
memory/5088-136-0x0000000004E30000-0x0000000005458000-memory.dmp

Filesize
6.2MB

Download
memory/5088-141-0x0000000006010000-0x000000000602A000-memory.dmp

Filesize
104KB

Download
memory/5088-140-0x0000000007350000-0x00000000079CA000-memory.dmp

Filesize
6.5MB

Download
memory/5088-139-0x0000000005B10000-0x0000000005B2E000-memory.dmp

Filesize
120KB

Download
memory/5088-138-0x00000000054D0000-0x0000000005536000-memory.dmp

Filesize
408KB

Download
memory/5088-137-0x0000000004D70000-0x0000000004DD6000-memory.dmp

Filesize
408KB

Download
memory/5088-135-0x0000000002220000-0x0000000002256000-memory.dmp

Filesize
216KB

Download

Analysis

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