agenttesla | f5e569abf12e1a85aecfcdfe9dd84ce7ca2235c59a8c357c257ac5005645ef80

General

Target
Request Quotation.exe
Size 619KB
Sample220617-glv5fsdbe2
SHA256 f5e569abf12e1a85aecfcdfe9dd84ce7ca2235c59a8c357c257ac5005645ef80
MD5 ea879ef4e85e7a4661c3a42f52207adb
SHA1 47f65465a5fe2536e101315f4f4a5bd4bea0597c
SHA512 74f445f9ee802ba075ba08d212812fa669f73c78b5eaa0dc43288c90771ea8d1a058edcf8797ed1971ace2176ec28d28bbfab8adc94b478e1a3e20abd59033ca
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.perfecta-tn.com
Port
587
Username
[email protected]
Password
?Per#fec!ta?15
Email to
[email protected]

Signatures

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

Drops file in Drivers directory 1 IoCs

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	Request Quotation.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yqWDN = "C:\\Users\\Admin\\AppData\\Roaming\\yqWDN\\yqWDN.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2564 set thread context of 3884	2564	Request Quotation.exe	95

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
3792	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2564	Request Quotation.exe
2564	Request Quotation.exe
2564	Request Quotation.exe
2564	Request Quotation.exe
2564	Request Quotation.exe
3884	RegSvcs.exe
3884	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2564	Request Quotation.exe
Token: SeDebugPrivilege	3884	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2564 wrote to memory of 3792	2564	Request Quotation.exe	91
PID 2564 wrote to memory of 3792	2564	Request Quotation.exe	91
PID 2564 wrote to memory of 3792	2564	Request Quotation.exe	91
PID 2564 wrote to memory of 1132	2564	Request Quotation.exe	93
PID 2564 wrote to memory of 1132	2564	Request Quotation.exe	93
PID 2564 wrote to memory of 1132	2564	Request Quotation.exe	93
PID 2564 wrote to memory of 4036	2564	Request Quotation.exe	94
PID 2564 wrote to memory of 4036	2564	Request Quotation.exe	94
PID 2564 wrote to memory of 4036	2564	Request Quotation.exe	94
PID 2564 wrote to memory of 3884	2564	Request Quotation.exe	95
PID 2564 wrote to memory of 3884	2564	Request Quotation.exe	95
PID 2564 wrote to memory of 3884	2564	Request Quotation.exe	95
PID 2564 wrote to memory of 3884	2564	Request Quotation.exe	95
PID 2564 wrote to memory of 3884	2564	Request Quotation.exe	95
PID 2564 wrote to memory of 3884	2564	Request Quotation.exe	95
PID 2564 wrote to memory of 3884	2564	Request Quotation.exe	95
PID 2564 wrote to memory of 3884	2564	Request Quotation.exe	95

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Request Quotation.exe
"C:\Users\Admin\AppData\Local\Temp\Request Quotation.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2564
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CuTGDKKovsBzGA" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7271.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3792
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  PID:1132
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  PID:4036
- 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:3884

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

1

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

tmp7271.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp7271.tmp
Size 1KB
SHA256 128c8411d0cce3f352f22dfd6071b4b722e728be8edd882dbe91dc2052c8e0cd
MD5 43a51cb264be4ca274cf2311edf2cb1b
SHA1 bb47c9b352aec7fadaf9426e8bbfe14d25c3f170
SHA512 7a99ea0bfafadb54d2b561c231419e65d334c0488981e9e8b3124c9b0e083d8afbb0c74367cb6223b7ec0a62a58d8efc2acde332666bbb2ccf55ec63167524f9
MD5 SHA1 SHA512

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memory/2564-133-0x00000000056B0000-0x000000000574C000-memory.dmp

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memory/2564-130-0x0000000000B40000-0x0000000000BE0000-memory.dmp

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memory/2564-134-0x0000000005620000-0x000000000562A000-memory.dmp

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memory/2564-132-0x0000000005570000-0x0000000005602000-memory.dmp

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memory/2564-131-0x0000000005A80000-0x0000000006024000-memory.dmp

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memory/3884-140-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/3884-141-0x0000000006130000-0x0000000006196000-memory.dmp

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memory/3884-142-0x0000000006780000-0x00000000067D0000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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