agenttesla | 9189d9d13ec6f7310211d7ddfa829a4d7e854ab62ee39ea6db7f993714fa561e

General

Target

Swift copy.xls.exe
Size

705KB
MD5

02b4cd91c80eb6395d1329beb9e20d15
SHA1

dd02b4a3c4e10fe21d4276e5d1e37eeb7ba38e3b
SHA256

0ccd73a94d46ffb3f88ab74256197c9cb5e15d87f017b5752ee557985138c1b4
SHA512

c16e27c117447765148b7e9999d4b01a70fb59a9b1e70c607e7c350e3967b92d0361c508b00c8a56994af49a1aad03525e959abd677a1fd19b7605b24071d014

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.blc.com.np
Port:
587
Username:
[email protected]
Password:
bhuramal

Signatures

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

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1292-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1292-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1292-66-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1292-67-0x0000000000446EEE-mapping.dmp	family_agenttesla
behavioral1/memory/1292-69-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1292-71-0x0000000000400000-0x000000000044C000-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-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\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-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\AvWCA = "C:\\Users\\Admin\\AppData\\Roaming\\AvWCA\\AvWCA.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Swift copy.xls.exe

description pid process target process

PID 1092 set thread context of 1292 1092 Swift copy.xls.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

1480 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1912 REG.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

Swift copy.xls.exeRegSvcs.exe

pid process

1092 Swift copy.xls.exe
1092 Swift copy.xls.exe
1092 Swift copy.xls.exe
1292 RegSvcs.exe
1292 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Swift copy.xls.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1092 Swift copy.xls.exe
Token: SeDebugPrivilege 1292 RegSvcs.exe

description	pid	process	target process
PID 1092 set thread context of 1292	1092	Swift copy.xls.exe	RegSvcs.exe

pid	process
1480	schtasks.exe

pid	process
1912	REG.exe

pid	process
1092	Swift copy.xls.exe
1092	Swift copy.xls.exe
1092	Swift copy.xls.exe
1292	RegSvcs.exe
1292	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1092	Swift copy.xls.exe
Token: SeDebugPrivilege	1292	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

Swift copy.xls.exeRegSvcs.exe

description	pid	process	target process
PID 1092 wrote to memory of 1480	1092	Swift copy.xls.exe	schtasks.exe
PID 1092 wrote to memory of 1480	1092	Swift copy.xls.exe	schtasks.exe
PID 1092 wrote to memory of 1480	1092	Swift copy.xls.exe	schtasks.exe
PID 1092 wrote to memory of 1480	1092	Swift copy.xls.exe	schtasks.exe
PID 1092 wrote to memory of 1292	1092	Swift copy.xls.exe	RegSvcs.exe
PID 1092 wrote to memory of 1292	1092	Swift copy.xls.exe	RegSvcs.exe
PID 1092 wrote to memory of 1292	1092	Swift copy.xls.exe	RegSvcs.exe
PID 1092 wrote to memory of 1292	1092	Swift copy.xls.exe	RegSvcs.exe
PID 1092 wrote to memory of 1292	1092	Swift copy.xls.exe	RegSvcs.exe
PID 1092 wrote to memory of 1292	1092	Swift copy.xls.exe	RegSvcs.exe
PID 1092 wrote to memory of 1292	1092	Swift copy.xls.exe	RegSvcs.exe
PID 1092 wrote to memory of 1292	1092	Swift copy.xls.exe	RegSvcs.exe
PID 1092 wrote to memory of 1292	1092	Swift copy.xls.exe	RegSvcs.exe
PID 1092 wrote to memory of 1292	1092	Swift copy.xls.exe	RegSvcs.exe
PID 1092 wrote to memory of 1292	1092	Swift copy.xls.exe	RegSvcs.exe
PID 1092 wrote to memory of 1292	1092	Swift copy.xls.exe	RegSvcs.exe
PID 1292 wrote to memory of 1912	1292	RegSvcs.exe	REG.exe
PID 1292 wrote to memory of 1912	1292	RegSvcs.exe	REG.exe
PID 1292 wrote to memory of 1912	1292	RegSvcs.exe	REG.exe
PID 1292 wrote to memory of 1912	1292	RegSvcs.exe	REG.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\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-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Swift copy.xls.exe
"C:\Users\Admin\AppData\Local\Temp\Swift copy.xls.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1092

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iaXmbTAUg" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC5C0.tmp"
2⤵
- Creates scheduled task(s)
PID:1480

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:1292

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:1912

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC5C0.tmp
Filesize
1KB

MD5
931716f2020e60f219be107f00fb7f64

SHA1
81fe5fc470eb989c2be79bbdcd25181861399ec8

SHA256
20c767731e62336be37403499d7bdfff579ae77172715c44273eb066a3029b4c

SHA512
470861d033a6a43abf11a307084a5c2b6dd7086175c37c4a74907ccf0266f3684d3d1533016f115fd1d9753f00c8a1379cf5218339b7d602e060e6ba061e9796

Download Submit
memory/1092-55-0x0000000074C81000-0x0000000074C83000-memory.dmp

Filesize
8KB

Download
memory/1092-56-0x00000000005C0000-0x00000000005D0000-memory.dmp

Filesize
64KB

Download
memory/1092-57-0x0000000000C00000-0x0000000000C60000-memory.dmp

Filesize
384KB

Download
memory/1092-58-0x0000000000B70000-0x0000000000BBC000-memory.dmp

Filesize
304KB

Download
memory/1092-54-0x0000000000F10000-0x0000000000FC6000-memory.dmp

Filesize
728KB

Download
memory/1292-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1292-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1292-62-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1292-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1292-66-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1292-67-0x0000000000446EEE-mapping.dmp

Download
memory/1292-69-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1292-71-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1480-59-0x0000000000000000-mapping.dmp

Download
memory/1912-73-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads