agenttesla | 1cc4d9fc5b5eb3550d60c5bc793ce8691c43024cdea5eedbbe321174a7ed60e8

General

Target

invoice.exe
Size

661KB
MD5

62d71e64446c5a38e393a1fe2b57fd40
SHA1

29c4057c9fa750363eb70e3d92ea31f4498beeca
SHA256

9748273b3c0d1351dd509be12aa2f6787e385beea419de9adfd9be8f999bfa0c
SHA512

bc2700cb6b1e21facfadb60f90d45897bcfac4f1ebc4b2c691f275db16908adc7539dd0d7729d59a3317bd8b2e679e4c11bffe4c3633c9c695369eea3cdab079

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.tiig-eg.com
Port:
587
Username:
[email protected]
Password:
servicelorch

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/2112-139-0x0000000000400000-0x000000000045A000-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:

invoice.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	invoice.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\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-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sRfDVrD = "C:\\Users\\Admin\\AppData\\Roaming\\sRfDVrD\\sRfDVrD.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

invoice.exe

description pid process target process

PID 2368 set thread context of 2112 2368 invoice.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

5048 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1624 REG.exe
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

invoice.exeRegSvcs.exe

pid process

2368 invoice.exe
2368 invoice.exe
2368 invoice.exe
2368 invoice.exe
2368 invoice.exe
2368 invoice.exe
2112 RegSvcs.exe
2112 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

invoice.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 2368 invoice.exe
Token: SeDebugPrivilege 2112 RegSvcs.exe

description	pid	process	target process
PID 2368 set thread context of 2112	2368	invoice.exe	RegSvcs.exe

pid	process
5048	schtasks.exe

pid	process
1624	REG.exe

pid	process
2368	invoice.exe
2368	invoice.exe
2368	invoice.exe
2368	invoice.exe
2368	invoice.exe
2368	invoice.exe
2112	RegSvcs.exe
2112	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	2368	invoice.exe
Token: SeDebugPrivilege	2112	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

invoice.exeRegSvcs.exe

description	pid	process	target process
PID 2368 wrote to memory of 5048	2368	invoice.exe	schtasks.exe
PID 2368 wrote to memory of 5048	2368	invoice.exe	schtasks.exe
PID 2368 wrote to memory of 5048	2368	invoice.exe	schtasks.exe
PID 2368 wrote to memory of 4748	2368	invoice.exe	RegSvcs.exe
PID 2368 wrote to memory of 4748	2368	invoice.exe	RegSvcs.exe
PID 2368 wrote to memory of 4748	2368	invoice.exe	RegSvcs.exe
PID 2368 wrote to memory of 2112	2368	invoice.exe	RegSvcs.exe
PID 2368 wrote to memory of 2112	2368	invoice.exe	RegSvcs.exe
PID 2368 wrote to memory of 2112	2368	invoice.exe	RegSvcs.exe
PID 2368 wrote to memory of 2112	2368	invoice.exe	RegSvcs.exe
PID 2368 wrote to memory of 2112	2368	invoice.exe	RegSvcs.exe
PID 2368 wrote to memory of 2112	2368	invoice.exe	RegSvcs.exe
PID 2368 wrote to memory of 2112	2368	invoice.exe	RegSvcs.exe
PID 2368 wrote to memory of 2112	2368	invoice.exe	RegSvcs.exe
PID 2112 wrote to memory of 1624	2112	RegSvcs.exe	REG.exe
PID 2112 wrote to memory of 1624	2112	RegSvcs.exe	REG.exe
PID 2112 wrote to memory of 1624	2112	RegSvcs.exe	REG.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\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-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\invoice.exe
"C:\Users\Admin\AppData\Local\Temp\invoice.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2368

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WAWdjSHDrRYnTh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7B89.tmp"
2⤵
- Creates scheduled task(s)
PID:5048

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:4748

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:2112

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:1624

Network

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp7B89.tmp
Filesize
1KB

MD5
d761900105470ec543ec81bad5b46cc4

SHA1
1e4a4d66ede7a1a43d660210bf4ee078b74c2f1b

SHA256
29c9757e10a5ebd34c388baa35b87dec0c8a4469ca1e7bd15450b7149c4b4b2e

SHA512
4b716a99978a9b2aadd45f1474b59b29192331fb211219e98debfe73146dd524159c3f2d8844c0add0445c3fa8441efb395ef5d14bc972b2bc83c12b28b22423

Download Submit
memory/1624-142-0x0000000000000000-mapping.dmp

Download
memory/2112-139-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/2112-138-0x0000000000000000-mapping.dmp

Download
memory/2112-140-0x0000000005720000-0x0000000005786000-memory.dmp

Filesize
408KB

Download
memory/2112-141-0x00000000062C0000-0x0000000006310000-memory.dmp

Filesize
320KB

Download
memory/2368-133-0x0000000007580000-0x000000000758A000-memory.dmp

Filesize
40KB

Download
memory/2368-134-0x00000000098E0000-0x000000000997C000-memory.dmp

Filesize
624KB

Download
memory/2368-132-0x00000000073F0000-0x0000000007482000-memory.dmp

Filesize
584KB

Download
memory/2368-130-0x00000000004C0000-0x000000000056C000-memory.dmp

Filesize
688KB

Download
memory/2368-131-0x00000000078C0000-0x0000000007E64000-memory.dmp

Filesize
5.6MB

Download
memory/4748-137-0x0000000000000000-mapping.dmp

Download
memory/5048-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads