agenttesla | 6a6904fef61581e401e942e8d0528d1d5e356b2f41d4792e61b7fe439db18bec

General

Target

bank TT slip.exe
Size

721KB
MD5

fb34717ca05cea78fac1c7a48e7e5684
SHA1

c137cd16f0fe4021aebbe34a8fc6e262605ca45b
SHA256

e9a4d51808c53409c7e5e76b6a0201804ca6cbe8ee2d8cc473e2b8c56503ba1b
SHA512

bce62bd0d47b3d627e063b93260e27a68a64816527d166f9c6e6022fe56f04258e7daa38d05bb446d9ccf3f2ad8fe1de87dab8d532dd11b6dcf09c0685c4daf0

Score

10^/10

agenttesla collection evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.prcpl.com
Port:
587
Username:
[email protected]
Password:
jyotika@2015

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
UAC bypass 3 TTPs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

Modify Registry
T1112

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1528-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1528-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1528-66-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1528-67-0x00000000004476AE-mapping.dmp	family_agenttesla
behavioral1/memory/1528-69-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1528-71-0x0000000000400000-0x000000000044C000-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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\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-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run\CJzRAE = "C:\\Users\\Admin\\AppData\\Roaming\\CJzRAE\\CJzRAE.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

bank TT slip.exe

description pid process target process

PID 1976 set thread context of 1528 1976 bank TT slip.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

1624 schtasks.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

bank TT slip.exeRegSvcs.exe

pid process

1976 bank TT slip.exe
1976 bank TT slip.exe
1976 bank TT slip.exe
1976 bank TT slip.exe
1528 RegSvcs.exe
1528 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

bank TT slip.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1976 bank TT slip.exe
Token: SeDebugPrivilege 1528 RegSvcs.exe

description	pid	process	target process
PID 1976 set thread context of 1528	1976	bank TT slip.exe	RegSvcs.exe

pid	process
1624	schtasks.exe

pid	process
1976	bank TT slip.exe
1976	bank TT slip.exe
1976	bank TT slip.exe
1976	bank TT slip.exe
1528	RegSvcs.exe
1528	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1976	bank TT slip.exe
Token: SeDebugPrivilege	1528	RegSvcs.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

bank TT slip.exe

description	pid	process	target process
PID 1976 wrote to memory of 1624	1976	bank TT slip.exe	schtasks.exe
PID 1976 wrote to memory of 1624	1976	bank TT slip.exe	schtasks.exe
PID 1976 wrote to memory of 1624	1976	bank TT slip.exe	schtasks.exe
PID 1976 wrote to memory of 1624	1976	bank TT slip.exe	schtasks.exe
PID 1976 wrote to memory of 1924	1976	bank TT slip.exe	RegSvcs.exe
PID 1976 wrote to memory of 1924	1976	bank TT slip.exe	RegSvcs.exe
PID 1976 wrote to memory of 1924	1976	bank TT slip.exe	RegSvcs.exe
PID 1976 wrote to memory of 1924	1976	bank TT slip.exe	RegSvcs.exe
PID 1976 wrote to memory of 1924	1976	bank TT slip.exe	RegSvcs.exe
PID 1976 wrote to memory of 1924	1976	bank TT slip.exe	RegSvcs.exe
PID 1976 wrote to memory of 1924	1976	bank TT slip.exe	RegSvcs.exe
PID 1976 wrote to memory of 1528	1976	bank TT slip.exe	RegSvcs.exe
PID 1976 wrote to memory of 1528	1976	bank TT slip.exe	RegSvcs.exe
PID 1976 wrote to memory of 1528	1976	bank TT slip.exe	RegSvcs.exe
PID 1976 wrote to memory of 1528	1976	bank TT slip.exe	RegSvcs.exe
PID 1976 wrote to memory of 1528	1976	bank TT slip.exe	RegSvcs.exe
PID 1976 wrote to memory of 1528	1976	bank TT slip.exe	RegSvcs.exe
PID 1976 wrote to memory of 1528	1976	bank TT slip.exe	RegSvcs.exe
PID 1976 wrote to memory of 1528	1976	bank TT slip.exe	RegSvcs.exe
PID 1976 wrote to memory of 1528	1976	bank TT slip.exe	RegSvcs.exe
PID 1976 wrote to memory of 1528	1976	bank TT slip.exe	RegSvcs.exe
PID 1976 wrote to memory of 1528	1976	bank TT slip.exe	RegSvcs.exe
PID 1976 wrote to memory of 1528	1976	bank TT slip.exe	RegSvcs.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\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-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\bank TT slip.exe
"C:\Users\Admin\AppData\Local\Temp\bank TT slip.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1976

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZOfFXmWpxZgJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6172.tmp"
2⤵
- Creates scheduled task(s)
PID:1624

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:1924

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
- outlook_office_path
- outlook_win_path
PID:1528

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

Bypass User Account Control

1

T1088

Scheduled Task

1

T1053

Defense Evasion

Bypass User Account Control

1

T1088

Disabling Security Tools

1

T1089

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp6172.tmp
Filesize
1KB

MD5
fddd168fe5882b87805c6938ec7f702d

SHA1
891b09162ea3714d0118b659ec787dfcb214adb5

SHA256
1dc129ea938b64b212274169f2c9a6520831cb809a0f13441ac69d1c14f9fbb1

SHA512
ba132caf0cec87afd7fea45aeeb27fbb6f1418fcf6f945ec175c21c6b2808b7f720bc182b4449277f6d879d0f8d20e47ca4cc1cf1ffa30b72a4f5cdf67382d5c

Download Submit
memory/1528-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1528-66-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1528-71-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1528-69-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1528-67-0x00000000004476AE-mapping.dmp

Download
memory/1528-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1528-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1528-62-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1624-59-0x0000000000000000-mapping.dmp

Download
memory/1976-54-0x00000000000D0000-0x000000000018A000-memory.dmp

Filesize
744KB

Download
memory/1976-55-0x00000000757C1000-0x00000000757C3000-memory.dmp

Filesize
8KB

Download
memory/1976-56-0x00000000004A0000-0x00000000004B0000-memory.dmp

Filesize
64KB

Download
memory/1976-58-0x0000000004B80000-0x0000000004BCC000-memory.dmp

Filesize
304KB

Download
memory/1976-57-0x0000000004510000-0x0000000004578000-memory.dmp

Filesize
416KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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