agenttesla | 5a052664d784432a0f9a707401e4095bef5d7703c32f9314dd5c9bdd5b273a1d

General

Target

New Order #21076.exe
Size

926KB
MD5

7de57138380dd92fbee7229d46adee4a
SHA1

bb63c25fc5730c0766f6f0de491725bc034a8a1f
SHA256

5a052664d784432a0f9a707401e4095bef5d7703c32f9314dd5c9bdd5b273a1d
SHA512

709d5e1ece9924d54560c332c2e4ae62778fd3dabafaee53b5b7e4e90f83a271e434b071f3fdccc6b0de3183a556835f049341df0b3e7a61769000809333f85c

Score

10^/10

agenttesla evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.tthyssenkrupp.com
Port:
587
Username:
[email protected]
Password:
pgrOSoL7

Signatures

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

AgentTesla Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/748-10-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/748-11-0x00000000004375FE-mapping.dmp	family_agenttesla
behavioral1/memory/748-13-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

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:

New Order #21076.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	New Order #21076.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	New Order #21076.exe

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

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:

New Order #21076.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	New Order #21076.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	New Order #21076.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

New Order #21076.exe

description pid process target process

PID 1076 set thread context of 748 1076 New Order #21076.exe New Order #21076.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

624 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

New Order #21076.exeNew Order #21076.exe

pid process

1076 New Order #21076.exe
748 New Order #21076.exe
748 New Order #21076.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

New Order #21076.exeNew Order #21076.exe

description pid process

Token: SeDebugPrivilege 1076 New Order #21076.exe
Token: SeDebugPrivilege 748 New Order #21076.exe

description	pid	process	target process
PID 1076 set thread context of 748	1076	New Order #21076.exe	New Order #21076.exe

pid	process
624	schtasks.exe

pid	process
1076	New Order #21076.exe
748	New Order #21076.exe
748	New Order #21076.exe

description	pid	process
Token: SeDebugPrivilege	1076	New Order #21076.exe
Token: SeDebugPrivilege	748	New Order #21076.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

New Order #21076.exe

description	pid	process	target process
PID 1076 wrote to memory of 624	1076	New Order #21076.exe	schtasks.exe
PID 1076 wrote to memory of 624	1076	New Order #21076.exe	schtasks.exe
PID 1076 wrote to memory of 624	1076	New Order #21076.exe	schtasks.exe
PID 1076 wrote to memory of 624	1076	New Order #21076.exe	schtasks.exe
PID 1076 wrote to memory of 748	1076	New Order #21076.exe	New Order #21076.exe
PID 1076 wrote to memory of 748	1076	New Order #21076.exe	New Order #21076.exe
PID 1076 wrote to memory of 748	1076	New Order #21076.exe	New Order #21076.exe
PID 1076 wrote to memory of 748	1076	New Order #21076.exe	New Order #21076.exe
PID 1076 wrote to memory of 748	1076	New Order #21076.exe	New Order #21076.exe
PID 1076 wrote to memory of 748	1076	New Order #21076.exe	New Order #21076.exe
PID 1076 wrote to memory of 748	1076	New Order #21076.exe	New Order #21076.exe
PID 1076 wrote to memory of 748	1076	New Order #21076.exe	New Order #21076.exe
PID 1076 wrote to memory of 748	1076	New Order #21076.exe	New Order #21076.exe

C:\Users\Admin\AppData\Local\Temp\New Order #21076.exe
"C:\Users\Admin\AppData\Local\Temp\New Order #21076.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1076

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mVidlWHLZus" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA229.tmp"
2⤵
- Creates scheduled task(s)
PID:624

C:\Users\Admin\AppData\Local\Temp\New Order #21076.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:748

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

3

T1081

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA229.tmp

MD5
66ec29372ee090b3607e0922a2c51ace

SHA1
9630dbc4d05d9a53fcc1b84366a74d0a2a296057

SHA256
3afd69e7b728acd09a4cf7eec62285add6b2b1621bcba93f083d0aa9f82f384b

SHA512
d3374724e772188e7fef096ade93322c8ee6c2b4334cf53034440b665c47ff1dcedaa48c14bd2c6c2308c5a95cebf3d782a632f0cbf349d82bea996d3d60bdf1

Download Submit
memory/624-8-0x0000000000000000-mapping.dmp

Download
memory/748-12-0x0000000074CF0000-0x00000000753DE000-memory.dmp

Filesize
6.9MB

Download
memory/748-10-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/748-11-0x00000000004375FE-mapping.dmp

Download
memory/748-13-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/748-15-0x0000000004B30000-0x0000000004B31000-memory.dmp

Filesize
4KB

Download
memory/748-16-0x0000000004B31000-0x0000000004B32000-memory.dmp

Filesize
4KB

Download
memory/1076-6-0x00000000046E0000-0x00000000046E1000-memory.dmp

Filesize
4KB

Download
memory/1076-7-0x0000000005490000-0x000000000551C000-memory.dmp

Filesize
560KB

Download
memory/1076-5-0x00000000003D0000-0x00000000003DE000-memory.dmp

Filesize
56KB

Download
memory/1076-3-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/1076-2-0x0000000074CF0000-0x00000000753DE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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