agenttesla | aea7319d67789e4e524c4af9bcb842d66593a97dff25cb4be43eee5f5fb86963

General

Target
PURCHASE ORDER (PO.4029530).exe
Size 615KB
Sample200831-e6bgjf57bx
SHA256 aea7319d67789e4e524c4af9bcb842d66593a97dff25cb4be43eee5f5fb86963
MD5 e080c630c1cff4bf3eed195aaa93b31d
SHA1 684f0dc565624af4d944b1d259173d329f4cef84
SHA512 655aaf53d7d6320a42f1b078a62e3c700c2b2ccb5a7babb8898549c1b292152183f752f1d92f2617b6b016889b7b0ce43e6437b49bc5f7c77dd571fda3d17a32
MD5 SHA1 SHA512

Score

10^/10

keylogger stealer trojan spyware agenttesla persistence

Malware Config

Extracted

Credentials

Protocol
smtp
Host
mail.cortlandfire.org
Port
587
Username
[email protected]
Password
UsMc2336

Signatures

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

AgentTesla Payload 3 IoCs

keylogger stealer

resource	yara_rule
behavioral2/memory/3972-11-0x0000000000400000-0x0000000000466000-memory.dmp	agent_tesla
behavioral2/memory/3972-11-0x0000000000400000-0x0000000000466000-memory.dmp	agent_tesla
behavioral2/memory/3972-12-0x0000000000460EDE-mapping.dmp	agent_tesla

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

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-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Windows\CurrentVersion\Run\DsWhv = "C:\\Users\\Admin\\AppData\\Roaming\\DsWhv\\DsWhv.exe"	PURCHASE ORDER (PO.4029530).exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3712 set thread context of 3972	3712	PURCHASE ORDER (PO.4029530).exe	77

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\ServiceProfiles\LocalService\winhttp\cachev3.dat	svchost.exe

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
1740	schtasks.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	svchost.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecisionReason = "1"	svchost.exe
Set value (data)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecisionTime = a41dffcd867fd601	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecision = "0"	svchost.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
3712	PURCHASE ORDER (PO.4029530).exe
3712	PURCHASE ORDER (PO.4029530).exe
3712	PURCHASE ORDER (PO.4029530).exe
3972	PURCHASE ORDER (PO.4029530).exe
3972	PURCHASE ORDER (PO.4029530).exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	944	svchost.exe
Token: SeCreatePagefilePrivilege	944	svchost.exe
Token: SeDebugPrivilege	3712	PURCHASE ORDER (PO.4029530).exe
Token: SeDebugPrivilege	3972	PURCHASE ORDER (PO.4029530).exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3712 wrote to memory of 1740	3712	PURCHASE ORDER (PO.4029530).exe	75
PID 3712 wrote to memory of 1740	3712	PURCHASE ORDER (PO.4029530).exe	75
PID 3712 wrote to memory of 1740	3712	PURCHASE ORDER (PO.4029530).exe	75
PID 3712 wrote to memory of 3972	3712	PURCHASE ORDER (PO.4029530).exe	77
PID 3712 wrote to memory of 3972	3712	PURCHASE ORDER (PO.4029530).exe	77
PID 3712 wrote to memory of 3972	3712	PURCHASE ORDER (PO.4029530).exe	77
PID 3712 wrote to memory of 3972	3712	PURCHASE ORDER (PO.4029530).exe	77
PID 3712 wrote to memory of 3972	3712	PURCHASE ORDER (PO.4029530).exe	77
PID 3712 wrote to memory of 3972	3712	PURCHASE ORDER (PO.4029530).exe	77
PID 3712 wrote to memory of 3972	3712	PURCHASE ORDER (PO.4029530).exe	77
PID 3712 wrote to memory of 3972	3712	PURCHASE ORDER (PO.4029530).exe	77

C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER (PO.4029530).exe
"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER (PO.4029530).exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3712
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\djlNlFkpBw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2BA5.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1740
- C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER (PO.4029530).exe
  "{path}"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3972

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -s WinHttpAutoProxySvc
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:944

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

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/3712-5-0x00000000025D0000-0x00000000025D3000-memory.dmp

Download

memory/3712-1-0x0000000000130000-0x0000000000131000-memory.dmp

Download

memory/3712-0-0x0000000073FA0000-0x000000007468E000-memory.dmp

Download

memory/3712-6-0x00000000055E0000-0x0000000005661000-memory.dmp

Download

memory/3712-7-0x0000000005710000-0x0000000005711000-memory.dmp

Download

memory/3712-8-0x0000000007D60000-0x0000000007DDE000-memory.dmp

Download

memory/3712-3-0x0000000004FE0000-0x0000000004FE1000-memory.dmp

Download

memory/3712-4-0x0000000004B80000-0x0000000004B81000-memory.dmp

Download

memory/3972-11-0x0000000000400000-0x0000000000466000-memory.dmp

Download

memory/3972-13-0x0000000073FA0000-0x000000007468E000-memory.dmp

Download

memory/3972-18-0x00000000051B0000-0x00000000051B1000-memory.dmp

Download

memory/3972-19-0x0000000005DA0000-0x0000000005DA1000-memory.dmp

Download

memory/3972-21-0x0000000006120000-0x0000000006121000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads