agenttesla | 3dae8501068ac83bc8b9667a0d32dd2b7cb07815da52c2f20be99e6b54821339

Analysis

max time kernel
144s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
20/12/2022, 14:13

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General

Target
CHALLAN COPY.exe
Size 1.1MB
Sample221220-rjed2ada2x
SHA256 3dae8501068ac83bc8b9667a0d32dd2b7cb07815da52c2f20be99e6b54821339
MD5 563bb3454fe0ef031cdc3cbdec8cba6f
SHA1 80d5ce656945c68a8fd08939436279ee91d33849
SHA512 67202f2167a5a862204f13c1e3029f4063cd83f4606c84d1a5441df02cf480beb23e253e6c79ef703dd5fb49ae8dbe9be94a28dac51c02495a9e67263ad55318
SSDEEP 24576:HdkTcuhfIea19tqUrdagV2olsdwaZoyHv7Q2Jwm0FqhlKn:HohfINbtLrMgV2olsdDZPvEhqnK
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
host39.registrar-servers.com
Port
587
Username
[email protected]
Password
payment 12345

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-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	CHALLAN COPY.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-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CHALLAN COPY.exe
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CHALLAN COPY.exe
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CHALLAN COPY.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 3540 set thread context of 3708	3540	CHALLAN COPY.exe	87

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

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
1440	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3540	CHALLAN COPY.exe
3708	CHALLAN COPY.exe
3708	CHALLAN COPY.exe
3708	CHALLAN COPY.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3540	CHALLAN COPY.exe
Token: SeDebugPrivilege	3708	CHALLAN COPY.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3540 wrote to memory of 1440	3540	CHALLAN COPY.exe	85
PID 3540 wrote to memory of 1440	3540	CHALLAN COPY.exe	85
PID 3540 wrote to memory of 1440	3540	CHALLAN COPY.exe	85
PID 3540 wrote to memory of 3708	3540	CHALLAN COPY.exe	87
PID 3540 wrote to memory of 3708	3540	CHALLAN COPY.exe	87
PID 3540 wrote to memory of 3708	3540	CHALLAN COPY.exe	87
PID 3540 wrote to memory of 3708	3540	CHALLAN COPY.exe	87
PID 3540 wrote to memory of 3708	3540	CHALLAN COPY.exe	87
PID 3540 wrote to memory of 3708	3540	CHALLAN COPY.exe	87
PID 3540 wrote to memory of 3708	3540	CHALLAN COPY.exe	87
PID 3540 wrote to memory of 3708	3540	CHALLAN COPY.exe	87

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CHALLAN COPY.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CHALLAN COPY.exe

C:\Users\Admin\AppData\Local\Temp\CHALLAN COPY.exe
"C:\Users\Admin\AppData\Local\Temp\CHALLAN COPY.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3540
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dSXXtlEKuHmiGb" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE7F4.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1440
- C:\Users\Admin\AppData\Local\Temp\CHALLAN COPY.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3708

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

CHALLAN COPY.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\CHALLAN COPY.exe.log
Size 1KB
SHA256 e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99
MD5 84e77a587d94307c0ac1357eb4d3d46f
SHA1 83cc900f9401f43d181207d64c5adba7a85edc1e
SHA512 aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691
MD5 SHA1 SHA512

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tmpE7F4.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpE7F4.tmp
Size 1KB
SHA256 c6dd33a8b4e23e50a483e0c873b983ef6ecaafaeecf68523a9aab504187de043
MD5 9597ab0107e7fb79ebe0965006816ec6
SHA1 fe3edfdf7337b057e5d8caefff3181a8a0c97cde
SHA512 c02d4dc92c9ad0e861dc07decf36acbe2feb5314a0f4802224d9b965c458ef14a1cfe6433a9dabc4ca821e93fd5be552306e80c282a4cca2827cfd85f5325a41
MD5 SHA1 SHA512

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memory/3540-132-0x0000000000A90000-0x0000000000BB6000-memory.dmp

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memory/3540-133-0x0000000005A20000-0x0000000005FC4000-memory.dmp

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memory/3540-134-0x0000000005550000-0x00000000055E2000-memory.dmp

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memory/3540-135-0x0000000005690000-0x000000000572C000-memory.dmp

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memory/3540-136-0x0000000005610000-0x000000000561A000-memory.dmp

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memory/3708-140-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/3708-142-0x0000000006040000-0x00000000060A6000-memory.dmp

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memory/3708-143-0x0000000006CA0000-0x0000000006CF0000-memory.dmp

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