agenttesla | 27ff4d7994a19e27c347e7794e0e48fa5c66f36e4f27ab407f9044494dd8c5a5

General

Target

AWB# 102235516763.exe
Size

525KB
MD5

becb8d72429e5816f294986a1772e1a6
SHA1

d0136b9a5e8443fbdafbd1d97df695f431eb794e
SHA256

27ff4d7994a19e27c347e7794e0e48fa5c66f36e4f27ab407f9044494dd8c5a5
SHA512

a2e8ce769f9ee539700b3e14e524c96690e72f8a06eb9b2b46ed654d3dfdd66bf04d7a12ac3f637f19f8eaf528e3ad8ece3ff4006268ed822a25ef95cee65923

Score

10^/10

agenttesla collection evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.demo.jeninfo.com
Port:
587
Username:
[email protected]
Password:
%e&qapQ3oNkx

Signatures

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

AgentTesla Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2744-127-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/2744-128-0x00000000004376DE-mapping.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Drops file in Drivers directory 1 IoCs

Processes:

AWB# 102235516763.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts AWB# 102235516763.exe
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	AWB# 102235516763.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

AWB# 102235516763.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	AWB# 102235516763.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	AWB# 102235516763.exe

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

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 stealer

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 stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

AWB# 102235516763.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AWB# 102235516763.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AWB# 102235516763.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AWB# 102235516763.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

AWB# 102235516763.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\tKZVPq = "C:\\Users\\Admin\\AppData\\Roaming\\tKZVPq\\tKZVPq.exe"	AWB# 102235516763.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

AWB# 102235516763.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	AWB# 102235516763.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	AWB# 102235516763.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

AWB# 102235516763.exe

description pid process target process

PID 584 set thread context of 2744 584 AWB# 102235516763.exe AWB# 102235516763.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

AWB# 102235516763.exe

pid process

2744 AWB# 102235516763.exe
2744 AWB# 102235516763.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

AWB# 102235516763.exe

description pid process

Token: SeDebugPrivilege 2744 AWB# 102235516763.exe

description	pid	process	target process
PID 584 set thread context of 2744	584	AWB# 102235516763.exe	AWB# 102235516763.exe

pid	process
2744	AWB# 102235516763.exe
2744	AWB# 102235516763.exe

description	pid	process
Token: SeDebugPrivilege	2744	AWB# 102235516763.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

AWB# 102235516763.exe

description	pid	process	target process
PID 584 wrote to memory of 2744	584	AWB# 102235516763.exe	AWB# 102235516763.exe
PID 584 wrote to memory of 2744	584	AWB# 102235516763.exe	AWB# 102235516763.exe
PID 584 wrote to memory of 2744	584	AWB# 102235516763.exe	AWB# 102235516763.exe
PID 584 wrote to memory of 2744	584	AWB# 102235516763.exe	AWB# 102235516763.exe
PID 584 wrote to memory of 2744	584	AWB# 102235516763.exe	AWB# 102235516763.exe
PID 584 wrote to memory of 2744	584	AWB# 102235516763.exe	AWB# 102235516763.exe
PID 584 wrote to memory of 2744	584	AWB# 102235516763.exe	AWB# 102235516763.exe
PID 584 wrote to memory of 2744	584	AWB# 102235516763.exe	AWB# 102235516763.exe

outlook_office_path 1 IoCs

Processes:

AWB# 102235516763.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AWB# 102235516763.exe

outlook_win_path 1 IoCs

Processes:

AWB# 102235516763.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AWB# 102235516763.exe

C:\Users\Admin\AppData\Local\Temp\AWB# 102235516763.exe
"C:\Users\Admin\AppData\Local\Temp\AWB# 102235516763.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:584

C:\Users\Admin\AppData\Local\Temp\AWB# 102235516763.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:2744

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

2

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\AWB# 102235516763.exe.log
MD5
5ce36f0c4d9568839c224ffaa10d5441

SHA1
69c0cdded0b415091641c3fbf64b7fbd7e285e47

SHA256
c93c5a9fdaa44aeb7f25c89abed40a1ca6432bf3ea840e2820388bef68cd116a

SHA512
a6ef350d4f36f35b42ce0b8a4df83f17fb0a4f66dcfa32617b22e642168291bede3b612969e0eec293d7ca1ba0aef7a05c31823bd41821e0880b609f280b0b83

Download Submit
memory/584-124-0x0000000007C80000-0x0000000007CFE000-memory.dmp

Filesize
504KB

Download
memory/584-123-0x0000000005760000-0x0000000005765000-memory.dmp

Filesize
20KB

Download
memory/584-119-0x00000000052C0000-0x00000000052C1000-memory.dmp

Filesize
4KB

Download
memory/584-120-0x00000000052C0000-0x00000000057BE000-memory.dmp

Filesize
5.0MB

Download
memory/584-125-0x0000000007D00000-0x0000000007D38000-memory.dmp

Filesize
224KB

Download
memory/584-122-0x0000000005480000-0x0000000005481000-memory.dmp

Filesize
4KB

Download
memory/584-118-0x00000000057C0000-0x00000000057C1000-memory.dmp

Filesize
4KB

Download
memory/584-115-0x0000000000930000-0x0000000000931000-memory.dmp

Filesize
4KB

Download
memory/584-121-0x00000000051E0000-0x00000000051E1000-memory.dmp

Filesize
4KB

Download
memory/584-126-0x000000000D2D0000-0x000000000D2D1000-memory.dmp

Filesize
4KB

Download
memory/584-117-0x0000000005220000-0x0000000005221000-memory.dmp

Filesize
4KB

Download
memory/2744-128-0x00000000004376DE-mapping.dmp

Download
memory/2744-127-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2744-134-0x0000000005190000-0x0000000005191000-memory.dmp

Filesize
4KB

Download
memory/2744-135-0x0000000005220000-0x0000000005221000-memory.dmp

Filesize
4KB

Download
memory/2744-139-0x0000000005191000-0x0000000005192000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads