agenttesla | 1fa1508619e68627140eaffb803b566bf5123fedf75b1954185f8ea2459b6e53

General

Target

dekontS009892823120097.exe
Size

674KB
MD5

ae60c35242d7b40242f3534b9b44ab8c
SHA1

971f54b01e13c655cc8b639071482cfd8d1126a7
SHA256

1fa1508619e68627140eaffb803b566bf5123fedf75b1954185f8ea2459b6e53
SHA512

2a146407773ae757b061eefcb78aaaf771068db0b22dc27e98113607557839cea19e10a42d3bbf411901b6828e316d34b429c5961666caaf467111886a762804
SSDEEP

12288:2rD6jT0DvJNf3Qojcu2RaSf02kwn8MKu2XVa6+jMUfCu0K:8D6T0DBNTjdOfb8hu2lGjMUfiK

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6437062908:AAEjLF9P2SzySTsTGgeQXxxJNFNfbLGUHH4/

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
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 2 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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1926387074-3400613176-3566796709-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dekontS009892823120097.exe
Key opened	\REGISTRY\USER\S-1-5-21-1926387074-3400613176-3566796709-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dekontS009892823120097.exe
Key opened	\REGISTRY\USER\S-1-5-21-1926387074-3400613176-3566796709-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dekontS009892823120097.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
54	api.ipify.org
55	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4700 set thread context of 4676	4700	dekontS009892823120097.exe	95

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4676	dekontS009892823120097.exe
4676	dekontS009892823120097.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4676	dekontS009892823120097.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4676	dekontS009892823120097.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4700 wrote to memory of 4676	4700	dekontS009892823120097.exe	95
PID 4700 wrote to memory of 4676	4700	dekontS009892823120097.exe	95
PID 4700 wrote to memory of 4676	4700	dekontS009892823120097.exe	95
PID 4700 wrote to memory of 4676	4700	dekontS009892823120097.exe	95
PID 4700 wrote to memory of 4676	4700	dekontS009892823120097.exe	95
PID 4700 wrote to memory of 4676	4700	dekontS009892823120097.exe	95
PID 4700 wrote to memory of 4676	4700	dekontS009892823120097.exe	95
PID 4700 wrote to memory of 4676	4700	dekontS009892823120097.exe	95

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1926387074-3400613176-3566796709-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dekontS009892823120097.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1926387074-3400613176-3566796709-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dekontS009892823120097.exe

C:\Users\Admin\AppData\Local\Temp\dekontS009892823120097.exe
"C:\Users\Admin\AppData\Local\Temp\dekontS009892823120097.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4700
- C:\Users\Admin\AppData\Local\Temp\dekontS009892823120097.exe
  "C:\Users\Admin\AppData\Local\Temp\dekontS009892823120097.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:4676

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

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\dekontS009892823120097.exe.log

Filesize
1KB

MD5
27b2fec2a6283b09ef15bd709cb96c3d

SHA1
728585dd6390edf7806524dcf4bf18139632a001

SHA256
451a266b23424f3075e68b990cb90c7c177d48a64688c39ee77a4e9e239cf311

SHA512
bb10e90a881b259b1b90e54a1451f660c96e900576000a294cd1311ac5a6d3b3567cc7ad169ed26ff38719d65462ad31b2247e0f80118dd693f45927255de50b

Download Submit
memory/4676-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4676-22-0x0000000005350000-0x0000000005360000-memory.dmp

Filesize
64KB

Download
memory/4676-21-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/4676-20-0x0000000006A20000-0x0000000006A70000-memory.dmp

Filesize
320KB

Download
memory/4676-18-0x00000000053D0000-0x0000000005436000-memory.dmp

Filesize
408KB

Download
memory/4676-19-0x0000000005350000-0x0000000005360000-memory.dmp

Filesize
64KB

Download
memory/4676-16-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/4700-5-0x00000000052E0000-0x00000000052EA000-memory.dmp

Filesize
40KB

Download
memory/4700-6-0x0000000005590000-0x00000000055AA000-memory.dmp

Filesize
104KB

Download
memory/4700-10-0x00000000059D0000-0x00000000059DC000-memory.dmp

Filesize
48KB

Download
memory/4700-11-0x0000000006A70000-0x0000000006AEC000-memory.dmp

Filesize
496KB

Download
memory/4700-12-0x00000000092F0000-0x000000000938C000-memory.dmp

Filesize
624KB

Download
memory/4700-8-0x00000000055F0000-0x0000000005600000-memory.dmp

Filesize
64KB

Download
memory/4700-7-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/4700-9-0x00000000059C0000-0x00000000059CA000-memory.dmp

Filesize
40KB

Download
memory/4700-17-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/4700-0-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/4700-4-0x00000000055F0000-0x0000000005600000-memory.dmp

Filesize
64KB

Download
memory/4700-3-0x0000000005340000-0x00000000053D2000-memory.dmp

Filesize
584KB

Download
memory/4700-2-0x0000000005A50000-0x0000000005FF4000-memory.dmp

Filesize
5.6MB

Download
memory/4700-1-0x00000000009E0000-0x0000000000A8E000-memory.dmp

Filesize
696KB

Download

Analysis

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