agenttesla | 369e6d352d539fce9c18791594c6ba5cebafd4fb5d27ee3cf2006dc92279dd67

Analysis

max time kernel
69s
max time network
68s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
19/10/2022, 07:24

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General

Target
QUOTATION.exe
Size 750KB
Sample221019-h8dpcsfab7
SHA256 3f77323ca44e9fdb70ea05be1bc7814ed7ae78be087363619a2f6bef4bb9bff9
MD5 5df938850b621ec1b54fd646b1076b26
SHA1 e164b60e1bcc721198fea251f312712ad2d6808c
SHA512 033cf9819e5c4be6e6093ee32d2df99ac252920d5ac30852238ed8dcccd886707f35a6066223d6430a45ff6e347363d0d44630984d4bdcc246c4ddd6193e08df
SSDEEP 12288:/AyTM2H5zdr5qN2YteKIt2LLeVpnnwP2OWNrkk:N/C7tIeiD62OWNrkk
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\KFWOdr = "C:\\Users\\Admin\\AppData\\Roaming\\KFWOdr\\KFWOdr.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 580 set thread context of 1416	580	QUOTATION.exe	30

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
1652	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
580	QUOTATION.exe
1416	RegSvcs.exe
1416	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	580	QUOTATION.exe
Token: SeDebugPrivilege	1416	RegSvcs.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
580	QUOTATION.exe
580	QUOTATION.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 580 wrote to memory of 1652	580	QUOTATION.exe	28
PID 580 wrote to memory of 1652	580	QUOTATION.exe	28
PID 580 wrote to memory of 1652	580	QUOTATION.exe	28
PID 580 wrote to memory of 1652	580	QUOTATION.exe	28
PID 580 wrote to memory of 1416	580	QUOTATION.exe	30
PID 580 wrote to memory of 1416	580	QUOTATION.exe	30
PID 580 wrote to memory of 1416	580	QUOTATION.exe	30
PID 580 wrote to memory of 1416	580	QUOTATION.exe	30
PID 580 wrote to memory of 1416	580	QUOTATION.exe	30
PID 580 wrote to memory of 1416	580	QUOTATION.exe	30
PID 580 wrote to memory of 1416	580	QUOTATION.exe	30
PID 580 wrote to memory of 1416	580	QUOTATION.exe	30
PID 580 wrote to memory of 1416	580	QUOTATION.exe	30
PID 580 wrote to memory of 1416	580	QUOTATION.exe	30
PID 580 wrote to memory of 1416	580	QUOTATION.exe	30
PID 580 wrote to memory of 1416	580	QUOTATION.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe
"C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:580
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ChoyNvaraab" /XML "C:\Users\Admin\AppData\Local\Temp\tmp72FF.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1652
- 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:1416

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

tmp72FF.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp72FF.tmp
Size 1KB
SHA256 ce85aa70afedaee010655446a0b83a95c6638e32256410db294773ea9979d094
MD5 27c0f1f2ee713fac62f30513663e315e
SHA1 3a7fc725e5f266d104653afc1f9917fc06cedc0d
SHA512 80e67e0fbd39fc230cec9587974de4e0f00a7513005a8196eb1f5d96e82dd0c8d995c55350dd8ab67b83d6728658f56557a088e2113b342b6982f58f235c78b5
MD5 SHA1 SHA512

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memory/580-57-0x0000000005A80000-0x0000000005B04000-memory.dmp

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memory/580-55-0x0000000075931000-0x0000000075933000-memory.dmp

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memory/580-54-0x0000000001190000-0x0000000001252000-memory.dmp

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memory/580-58-0x0000000000B70000-0x0000000000BAA000-memory.dmp

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memory/580-56-0x0000000000510000-0x0000000000530000-memory.dmp

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memory/1416-66-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1416-61-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1416-62-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1416-64-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1416-65-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1416-69-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1416-71-0x0000000000400000-0x000000000043A000-memory.dmp

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