agenttesla | af858def0f616ad682057578ad5db6fdc6f8fa9bc3413fda170360cdb7657a99

General

Target

andyzx.exe
Size

444KB
MD5

c11f1e1de112449a435b6bef633b4c33
SHA1

30f92ec9ee6b0dea8509b8e12d66971c9f59d8f1
SHA256

af858def0f616ad682057578ad5db6fdc6f8fa9bc3413fda170360cdb7657a99
SHA512

bf0b024dd91f019e1a98312657feaec68dd5ed5bb1051317c32b76e97e6e97a7a9d0170fdaca8110749aa6cb6294fc560da91008f25b0a53a1fd323b4c3f02be
SSDEEP

6144:yYa6ZqABOlqYdgEgnHDUjFEPS7yAThEeco9K2IAtvBXwUF:yYW/kYdgEgnjyFEPSGAmY9K2JBXwUF

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

Executes dropped EXE 2 IoCs

pid	Process
3868	dxahrqiq.exe
3444	dxahrqiq.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-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dxahrqiq.exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dxahrqiq.exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dxahrqiq.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-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RMBJLaF = "C:\\Users\\Admin\\AppData\\Roaming\\RMBJLaF\\RMBJLaF.exe"	dxahrqiq.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
10	api.ipify.org
11	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3868 set thread context of 3444	3868	dxahrqiq.exe	84

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 3 IoCs

pid	Process
3444	dxahrqiq.exe
3444	dxahrqiq.exe
3444	dxahrqiq.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3868	dxahrqiq.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3444	dxahrqiq.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4884 wrote to memory of 3868	4884	andyzx.exe	82
PID 4884 wrote to memory of 3868	4884	andyzx.exe	82
PID 4884 wrote to memory of 3868	4884	andyzx.exe	82
PID 3868 wrote to memory of 3444	3868	dxahrqiq.exe	84
PID 3868 wrote to memory of 3444	3868	dxahrqiq.exe	84
PID 3868 wrote to memory of 3444	3868	dxahrqiq.exe	84
PID 3868 wrote to memory of 3444	3868	dxahrqiq.exe	84

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dxahrqiq.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dxahrqiq.exe

C:\Users\Admin\AppData\Local\Temp\andyzx.exe
"C:\Users\Admin\AppData\Local\Temp\andyzx.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4884
- C:\Users\Admin\AppData\Local\Temp\dxahrqiq.exe
  "C:\Users\Admin\AppData\Local\Temp\dxahrqiq.exe" C:\Users\Admin\AppData\Local\Temp\feobiosq.itb
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:3868
- - C:\Users\Admin\AppData\Local\Temp\dxahrqiq.exe
    "C:\Users\Admin\AppData\Local\Temp\dxahrqiq.exe"
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:3444

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

System Information Discovery

1

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\Temp\dxahrqiq.exe

Filesize
62KB

MD5
b2c9423a40bdd155d9658f1d385587c9

SHA1
88559f36e7bb6b2587eb233e37a8e809d53f8d5f

SHA256
bca31af24066291bd0f330a588da9932523a908158358353cb0b74d91446c37e

SHA512
9158d5e3678fac19e371255115e07618cd1e090352c7067494324dae668b2376a86a809d4bdbaf68940cd1d59efabcfb20d855f069e827c8696960ceb7aa5ac1

Download Submit
C:\Users\Admin\AppData\Local\Temp\dxahrqiq.exe

Filesize
62KB

MD5
b2c9423a40bdd155d9658f1d385587c9

SHA1
88559f36e7bb6b2587eb233e37a8e809d53f8d5f

SHA256
bca31af24066291bd0f330a588da9932523a908158358353cb0b74d91446c37e

SHA512
9158d5e3678fac19e371255115e07618cd1e090352c7067494324dae668b2376a86a809d4bdbaf68940cd1d59efabcfb20d855f069e827c8696960ceb7aa5ac1

Download Submit
C:\Users\Admin\AppData\Local\Temp\dxahrqiq.exe

Filesize
62KB

MD5
b2c9423a40bdd155d9658f1d385587c9

SHA1
88559f36e7bb6b2587eb233e37a8e809d53f8d5f

SHA256
bca31af24066291bd0f330a588da9932523a908158358353cb0b74d91446c37e

SHA512
9158d5e3678fac19e371255115e07618cd1e090352c7067494324dae668b2376a86a809d4bdbaf68940cd1d59efabcfb20d855f069e827c8696960ceb7aa5ac1

Download Submit
C:\Users\Admin\AppData\Local\Temp\feobiosq.itb

Filesize
5KB

MD5
0f772099f13db36b2ab355e62e8a4ec9

SHA1
129b1ffc44f0ebfa0741c04355d56b7a37171415

SHA256
6ee48493b54d6b356b709cabbf25216a55a4a03ed84be6576c9e37fccd593e07

SHA512
52248ac7e887e36f76eb9fe8bfb00e01b3f7b1c00ff8a0217cfdaba2639f5fee57bbccf8ab54d1d560ac13970559bd34dec998e7092def3f94823bdc63d78b12

Download Submit
C:\Users\Admin\AppData\Local\Temp\gwlgxntq.fl

Filesize
258KB

MD5
24f0579083c50d2478b99298624f42c2

SHA1
9620319400de593e6115724f62a483d9d5933230

SHA256
723d7b0054ce967ef35ab5599e55d5dbd77c63624e0f97cb0ff5b3eae72e02d8

SHA512
fb2f5877d628c4068a8aceb4d808862fff587a7d67ba6a5c649f276426becfc1ff1322820167a0142e51d00af4dd3d15d3b6e149bcf192343f82bc658b09b40b

Download Submit
memory/3444-139-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3444-140-0x0000000005820000-0x0000000005DC4000-memory.dmp

Filesize
5.6MB

Download
memory/3444-141-0x0000000005390000-0x000000000542C000-memory.dmp

Filesize
624KB

Download
memory/3444-142-0x0000000006300000-0x0000000006366000-memory.dmp

Filesize
408KB

Download
memory/3444-143-0x0000000006C50000-0x0000000006CE2000-memory.dmp

Filesize
584KB

Download
memory/3444-144-0x0000000006FD0000-0x0000000006FDA000-memory.dmp

Filesize
40KB

Download
memory/3444-145-0x0000000007280000-0x00000000072D0000-memory.dmp

Filesize
320KB

Download

Analysis

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