agenttesla | 7959339db1709eabe418e3ca540f004fa7859fc53153ecfea1e64fd372d92f37

General

Target

PURCHASE ORDER.exe
Size

849KB
MD5

fe96b4b87c6023b699ccc5ece8485e14
SHA1

d29f6473b45d6dd8d9c89e376cf87e004278cd9a
SHA256

ee24bdde3b389e8776f89333aa2a9fe433d8a49c22a7b594b0db8f70b868de1a
SHA512

7900e2a057a9a13e48d2642d7dbabb779c52263bb002cc20d07a6dbb68b67c4f9ce7b6962d027c184b93a0c9a14ec6b2247c7b05ec59f003aa117f5129f366d6

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.a-k.co.ir
Port:
587
Username:
[email protected]
Password:
09133434194

Signatures

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

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4320-136-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

RegSvcs.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegSvcs.exe

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

Processes:

PURCHASE ORDER.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	PURCHASE ORDER.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OVDeV = "C:\\Users\\Admin\\AppData\\Roaming\\OVDeV\\OVDeV.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

PURCHASE ORDER.exe

description pid process target process

PID 3292 set thread context of 4320 3292 PURCHASE ORDER.exe RegSvcs.exe
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

Processes:

schtasks.exe

pid process

4584 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

4760 REG.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

PURCHASE ORDER.exeRegSvcs.exe

pid process

3292 PURCHASE ORDER.exe
3292 PURCHASE ORDER.exe
3292 PURCHASE ORDER.exe
3292 PURCHASE ORDER.exe
4320 RegSvcs.exe
4320 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PURCHASE ORDER.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 3292 PURCHASE ORDER.exe
Token: SeDebugPrivilege 4320 RegSvcs.exe

description	pid	process	target process
PID 3292 set thread context of 4320	3292	PURCHASE ORDER.exe	RegSvcs.exe

pid	process
4584	schtasks.exe

pid	process
4760	REG.exe

pid	process
3292	PURCHASE ORDER.exe
3292	PURCHASE ORDER.exe
3292	PURCHASE ORDER.exe
3292	PURCHASE ORDER.exe
4320	RegSvcs.exe
4320	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	3292	PURCHASE ORDER.exe
Token: SeDebugPrivilege	4320	RegSvcs.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

PURCHASE ORDER.exeRegSvcs.exe

description	pid	process	target process
PID 3292 wrote to memory of 4584	3292	PURCHASE ORDER.exe	schtasks.exe
PID 3292 wrote to memory of 4584	3292	PURCHASE ORDER.exe	schtasks.exe
PID 3292 wrote to memory of 4584	3292	PURCHASE ORDER.exe	schtasks.exe
PID 3292 wrote to memory of 4320	3292	PURCHASE ORDER.exe	RegSvcs.exe
PID 3292 wrote to memory of 4320	3292	PURCHASE ORDER.exe	RegSvcs.exe
PID 3292 wrote to memory of 4320	3292	PURCHASE ORDER.exe	RegSvcs.exe
PID 3292 wrote to memory of 4320	3292	PURCHASE ORDER.exe	RegSvcs.exe
PID 3292 wrote to memory of 4320	3292	PURCHASE ORDER.exe	RegSvcs.exe
PID 3292 wrote to memory of 4320	3292	PURCHASE ORDER.exe	RegSvcs.exe
PID 3292 wrote to memory of 4320	3292	PURCHASE ORDER.exe	RegSvcs.exe
PID 3292 wrote to memory of 4320	3292	PURCHASE ORDER.exe	RegSvcs.exe
PID 4320 wrote to memory of 4760	4320	RegSvcs.exe	REG.exe
PID 4320 wrote to memory of 4760	4320	RegSvcs.exe	REG.exe
PID 4320 wrote to memory of 4760	4320	RegSvcs.exe	REG.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3292

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\&startupname&" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA70.tmp"
2⤵
- Creates scheduled task(s)
PID:4584

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:4320

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
3⤵
- Modifies registry key
PID:4760

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA70.tmp
Filesize
1KB

MD5
f0194d140d5655b77acfe5c633086ba1

SHA1
8cd43646855f664a0ebcff81adb01c0681a9363e

SHA256
31fb428c38ed87cd3c15ca9020c0dd95120ff487e25a9886be7acf1c7c9c5e46

SHA512
abf16211ad68556400043b1a50b9753bbcdb25e433a1c7bc982afcd3c9bfa48207f063f90130d1f5fe1eb8c335ef06159d9fe740cff7f9e0cb6bca6d8e422a14

Download Submit
memory/3292-130-0x00000000002D0000-0x00000000003AA000-memory.dmp

Filesize
872KB

Download
memory/3292-131-0x0000000004BC0000-0x0000000004C5C000-memory.dmp

Filesize
624KB

Download
memory/3292-132-0x0000000004E40000-0x0000000004ED2000-memory.dmp

Filesize
584KB

Download
memory/4320-135-0x0000000000000000-mapping.dmp

Download
memory/4320-136-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4320-137-0x0000000005B10000-0x00000000060B4000-memory.dmp

Filesize
5.6MB

Download
memory/4320-138-0x0000000006200000-0x0000000006266000-memory.dmp

Filesize
408KB

Download
memory/4320-139-0x0000000006860000-0x00000000068B0000-memory.dmp

Filesize
320KB

Download
memory/4320-141-0x0000000006850000-0x000000000685A000-memory.dmp

Filesize
40KB

Download
memory/4584-133-0x0000000000000000-mapping.dmp

Download
memory/4760-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads