agenttesla | 3715a1b3671a7526ba34a708a617c353c27380d255b6a74493978ded978e01b0

General

Target

MT103 USD36k_pdf.exe
Size

300KB
MD5

67060e229fd001baaf2ff8e36f435f0f
SHA1

e8fa3767b8cc7df3c58e04ffb77ba49ca0d65210
SHA256

3715a1b3671a7526ba34a708a617c353c27380d255b6a74493978ded978e01b0
SHA512

38ea3c2ed47ae45062b6239c1812616479fefe957f93b60281431d5aff6272fa7948b0bc77149ae2195ccf2abb2171e99731d68e06bf990ebbb9aa18a49c5086
SSDEEP

6144:BBnvBRhD9wLIp/s6usl9aAh3RhB0QbsIABuwVeWK:35aes6ft3Rhp7ABuwVe7

Score

10^/10

agenttesla collection keylogger 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

Processes:

kfeasmzfnj.exekfeasmzfnj.exe

pid process

4492 kfeasmzfnj.exe
2256 kfeasmzfnj.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

pid	process
4492	kfeasmzfnj.exe
2256	kfeasmzfnj.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

kfeasmzfnj.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	kfeasmzfnj.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	kfeasmzfnj.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	kfeasmzfnj.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

kfeasmzfnj.exe

description pid process target process

PID 4492 set thread context of 2256 4492 kfeasmzfnj.exe kfeasmzfnj.exe
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

Processes:

kfeasmzfnj.exe

pid process

2256 kfeasmzfnj.exe
2256 kfeasmzfnj.exe
2256 kfeasmzfnj.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

kfeasmzfnj.exe

pid process

4492 kfeasmzfnj.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

kfeasmzfnj.exe

description pid process

Token: SeDebugPrivilege 2256 kfeasmzfnj.exe

description	pid	process	target process
PID 4492 set thread context of 2256	4492	kfeasmzfnj.exe	kfeasmzfnj.exe

pid	process
2256	kfeasmzfnj.exe
2256	kfeasmzfnj.exe
2256	kfeasmzfnj.exe

pid	process
4492	kfeasmzfnj.exe

description	pid	process
Token: SeDebugPrivilege	2256	kfeasmzfnj.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

MT103 USD36k_pdf.exekfeasmzfnj.exe

description	pid	process	target process
PID 488 wrote to memory of 4492	488	MT103 USD36k_pdf.exe	kfeasmzfnj.exe
PID 488 wrote to memory of 4492	488	MT103 USD36k_pdf.exe	kfeasmzfnj.exe
PID 488 wrote to memory of 4492	488	MT103 USD36k_pdf.exe	kfeasmzfnj.exe
PID 4492 wrote to memory of 2256	4492	kfeasmzfnj.exe	kfeasmzfnj.exe
PID 4492 wrote to memory of 2256	4492	kfeasmzfnj.exe	kfeasmzfnj.exe
PID 4492 wrote to memory of 2256	4492	kfeasmzfnj.exe	kfeasmzfnj.exe
PID 4492 wrote to memory of 2256	4492	kfeasmzfnj.exe	kfeasmzfnj.exe

outlook_office_path 1 IoCs

Processes:

kfeasmzfnj.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	kfeasmzfnj.exe

outlook_win_path 1 IoCs

Processes:

kfeasmzfnj.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	kfeasmzfnj.exe

C:\Users\Admin\AppData\Local\Temp\MT103 USD36k_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\MT103 USD36k_pdf.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:488
- C:\Users\Admin\AppData\Local\Temp\kfeasmzfnj.exe
  "C:\Users\Admin\AppData\Local\Temp\kfeasmzfnj.exe" C:\Users\Admin\AppData\Local\Temp\dbxqmw.qr
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4492
- - C:\Users\Admin\AppData\Local\Temp\kfeasmzfnj.exe
    "C:\Users\Admin\AppData\Local\Temp\kfeasmzfnj.exe" C:\Users\Admin\AppData\Local\Temp\dbxqmw.qr
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:2256

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\dbxqmw.qr

Filesize
5KB

MD5
7352ef7b4a7ec98455c90e22d4c588aa

SHA1
aaab92935902c828e9d111722c35254571620dbd

SHA256
cc1d09769d2f707e2dd54f2dd58658f58eb32634d8bc197aa86ec24aa6bb1194

SHA512
90eb1e5b027aef8be4492c71d43f2c0bfdb722881f90c06598f904b42c86df513bc3016f2cebb3bebd8ab17e861c4f87d14dc4941167f5e6fd3a84d0697d571e

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

Filesize
37KB

MD5
24c602d3c445c8070cdd067b12415981

SHA1
0bd8ecfd615b9627034e0bbd91ce76a6f8a69797

SHA256
436e500579780305bfcb485024dc2e9dfaea7839f8e61ea3757c9526dcd18c23

SHA512
cf38c523550e7be1b29f72ce640be3e7a0c7ecfc2ec270743a31a631391edebe25546efb56c140b07260643bd7d98372f1e9eeb290f9fb89262108eeabc3afee

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

Filesize
37KB

MD5
24c602d3c445c8070cdd067b12415981

SHA1
0bd8ecfd615b9627034e0bbd91ce76a6f8a69797

SHA256
436e500579780305bfcb485024dc2e9dfaea7839f8e61ea3757c9526dcd18c23

SHA512
cf38c523550e7be1b29f72ce640be3e7a0c7ecfc2ec270743a31a631391edebe25546efb56c140b07260643bd7d98372f1e9eeb290f9fb89262108eeabc3afee

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

Filesize
37KB

MD5
24c602d3c445c8070cdd067b12415981

SHA1
0bd8ecfd615b9627034e0bbd91ce76a6f8a69797

SHA256
436e500579780305bfcb485024dc2e9dfaea7839f8e61ea3757c9526dcd18c23

SHA512
cf38c523550e7be1b29f72ce640be3e7a0c7ecfc2ec270743a31a631391edebe25546efb56c140b07260643bd7d98372f1e9eeb290f9fb89262108eeabc3afee

Download Submit
C:\Users\Admin\AppData\Local\Temp\xbrzayesyy.l

Filesize
273KB

MD5
27ddad24acda2f46f8fcc9d625b90085

SHA1
9ce96fe713d1cd3900624bbe286543c5c2ef62c5

SHA256
17bbd12b77b9ae1928b314958f2bcb639759cf6be3e9137baa0b92f4aedb7765

SHA512
71a0e948101e5fcc9d93559c41bfd8cc0d38bbed9fd23cafd8a469ab826843f22b9b644a86279fc493b6885449098e9972ac622e32703db0645abdf5c238044b

Download Submit
memory/2256-137-0x0000000000000000-mapping.dmp

Download
memory/2256-139-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2256-140-0x0000000004B00000-0x00000000050A4000-memory.dmp

Filesize
5.6MB

Download
memory/2256-141-0x0000000004A00000-0x0000000004A9C000-memory.dmp

Filesize
624KB

Download
memory/2256-142-0x0000000005720000-0x0000000005786000-memory.dmp

Filesize
408KB

Download
memory/2256-143-0x0000000005BF0000-0x0000000005C40000-memory.dmp

Filesize
320KB

Download
memory/2256-144-0x0000000005CD0000-0x0000000005D62000-memory.dmp

Filesize
584KB

Download
memory/2256-145-0x0000000005F90000-0x0000000005F9A000-memory.dmp

Filesize
40KB

Download
memory/4492-132-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads