agenttesla | cb29def3c7c961ecae3bb6cda5aebc5210828401fc97a4f9b61711a0d1c2ae2c

General

Target

OrderExport_URB202061165400.exe
Size

663KB
MD5

0eb06e938875e8bb4bfe14a94c6712df
SHA1

23a8e2badc0403aec721990c066771e20e1a5904
SHA256

cb29def3c7c961ecae3bb6cda5aebc5210828401fc97a4f9b61711a0d1c2ae2c
SHA512

9959db6860a6ff0f67301df994e411d4d3b3345ecaf36f4bf5cdccb8fbcfb44a86bcf6a2a80709746a27b414811c60b304b4ea745b55313cc1e797e49acc7d81

Score

10^/10

agenttesla coreentity evasion keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.sesan.com.vn
Port:
587
Username:
info@sesan.com.vn
Password:
123456

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.sesan.com.vn
Port:
587
Username:
info@sesan.com.vn
Password:
123456

Signatures

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

CoreEntity .NET Packer 1 IoCs

A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

coreentity

Processes:

resource	yara_rule
behavioral2/memory/3272-7-0x000000000A2F0000-0x000000000A2F2000-memory.dmp	coreentity

AgentTesla Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2924-13-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral2/memory/2924-14-0x000000000044CBDE-mapping.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

rezer0 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral2/memory/3272-8-0x0000000004DD0000-0x0000000004E23000-memory.dmp	rezer0

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:

OrderExport_URB202061165400.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	OrderExport_URB202061165400.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	OrderExport_URB202061165400.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:

OrderExport_URB202061165400.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	OrderExport_URB202061165400.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	OrderExport_URB202061165400.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

OrderExport_URB202061165400.exe

description pid process target process

PID 3272 set thread context of 2924 3272 OrderExport_URB202061165400.exe OrderExport_URB202061165400.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

2968 schtasks.exe

description	pid	process	target process
PID 3272 set thread context of 2924	3272	OrderExport_URB202061165400.exe	OrderExport_URB202061165400.exe

pid	process
2968	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

OrderExport_URB202061165400.exeOrderExport_URB202061165400.exe

pid	process
3272	OrderExport_URB202061165400.exe
3272	OrderExport_URB202061165400.exe
3272	OrderExport_URB202061165400.exe
2924	OrderExport_URB202061165400.exe
2924	OrderExport_URB202061165400.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

OrderExport_URB202061165400.exeOrderExport_URB202061165400.exe

description pid process

Token: SeDebugPrivilege 3272 OrderExport_URB202061165400.exe
Token: SeDebugPrivilege 2924 OrderExport_URB202061165400.exe

description	pid	process
Token: SeDebugPrivilege	3272	OrderExport_URB202061165400.exe
Token: SeDebugPrivilege	2924	OrderExport_URB202061165400.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

OrderExport_URB202061165400.exeOrderExport_URB202061165400.exe

C:\Users\Admin\AppData\Local\Temp\OrderExport_URB202061165400.exe
"C:\Users\Admin\AppData\Local\Temp\OrderExport_URB202061165400.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:3272

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ExfvRaGVfqPTbq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9C36.tmp"
2⤵
- Creates scheduled task(s)
PID:2968

C:\Users\Admin\AppData\Local\Temp\OrderExport_URB202061165400.exe
"{path}"
2⤵
PID:196

C:\Users\Admin\AppData\Local\Temp\OrderExport_URB202061165400.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2924

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:3732

Network

MITRE ATT&CK Matrix ATT&CK 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

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\OrderExport_URB202061165400.exe.log
MD5
ca0f5a97e99b64cce46421d178db03d0

SHA1
dc14bbb3304f311a8970fd16d7fd45b11fa9075f

SHA256
335bca3539bd41893cecddf8d4f5a6bf10b276687267e46fc1801a73e1170866

SHA512
db07fd19802353811e1c0da40233e8fe10abdbb7904beb69fe44106fe2822d98b571f5cf6e8c3a8e61dcca1b10048c5e102de478da47301b4f75fe6dcf434900

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9C36.tmp
MD5
37a021953c4846839bede2e16e0d0f5f

SHA1
8baa31eb5ff40d4993798f043f82f7a333aca4bc

SHA256
0699a62619651066f3e5c5fd0dbc0f617808113b675f76dc951feb3af08fd371

SHA512
9c1109734dcbbb40c94cc385016a3716e79695ac1a22f899265dbfb39723a72011eda64b96c3ffc496c99493004b46140c348007188000c47111fc64d2d635b1

Download Submit
memory/2924-21-0x00000000051A0000-0x00000000051A1000-memory.dmp

Filesize
4KB

Download
memory/2924-16-0x0000000073D40000-0x000000007442E000-memory.dmp

Filesize
6.9MB

Download
memory/2924-14-0x000000000044CBDE-mapping.dmp

Download
memory/2924-13-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2968-11-0x0000000000000000-mapping.dmp

Download
memory/3272-5-0x0000000009FF0000-0x0000000009FF1000-memory.dmp

Filesize
4KB

Download
memory/3272-9-0x0000000004ED0000-0x0000000004ED1000-memory.dmp

Filesize
4KB

Download
memory/3272-10-0x0000000005070000-0x0000000005071000-memory.dmp

Filesize
4KB

Download
memory/3272-8-0x0000000004DD0000-0x0000000004E23000-memory.dmp

Filesize
332KB

Download
memory/3272-7-0x000000000A2F0000-0x000000000A2F2000-memory.dmp

Filesize
8KB

Download
memory/3272-6-0x0000000004A60000-0x0000000004A61000-memory.dmp

Filesize
4KB

Download
memory/3272-0-0x0000000073D40000-0x000000007442E000-memory.dmp

Filesize
6.9MB

Download
memory/3272-4-0x000000000A4F0000-0x000000000A4F1000-memory.dmp

Filesize
4KB

Download
memory/3272-3-0x0000000004A80000-0x0000000004AF4000-memory.dmp

Filesize
464KB

Download
memory/3272-1-0x00000000000D0000-0x00000000000D1000-memory.dmp

Filesize
4KB

Download
memory/3732-23-0x0000000000000000-mapping.dmp

Download

description	pid	process	target process
PID 3272 wrote to memory of 2968	3272	OrderExport_URB202061165400.exe	schtasks.exe
PID 3272 wrote to memory of 2968	3272	OrderExport_URB202061165400.exe	schtasks.exe
PID 3272 wrote to memory of 2968	3272	OrderExport_URB202061165400.exe	schtasks.exe
PID 3272 wrote to memory of 196	3272	OrderExport_URB202061165400.exe	OrderExport_URB202061165400.exe
PID 3272 wrote to memory of 196	3272	OrderExport_URB202061165400.exe	OrderExport_URB202061165400.exe
PID 3272 wrote to memory of 196	3272	OrderExport_URB202061165400.exe	OrderExport_URB202061165400.exe
PID 3272 wrote to memory of 2924	3272	OrderExport_URB202061165400.exe	OrderExport_URB202061165400.exe
PID 3272 wrote to memory of 2924	3272	OrderExport_URB202061165400.exe	OrderExport_URB202061165400.exe
PID 3272 wrote to memory of 2924	3272	OrderExport_URB202061165400.exe	OrderExport_URB202061165400.exe
PID 3272 wrote to memory of 2924	3272	OrderExport_URB202061165400.exe	OrderExport_URB202061165400.exe
PID 3272 wrote to memory of 2924	3272	OrderExport_URB202061165400.exe	OrderExport_URB202061165400.exe
PID 3272 wrote to memory of 2924	3272	OrderExport_URB202061165400.exe	OrderExport_URB202061165400.exe
PID 3272 wrote to memory of 2924	3272	OrderExport_URB202061165400.exe	OrderExport_URB202061165400.exe
PID 3272 wrote to memory of 2924	3272	OrderExport_URB202061165400.exe	OrderExport_URB202061165400.exe
PID 2924 wrote to memory of 3732	2924	OrderExport_URB202061165400.exe	netsh.exe
PID 2924 wrote to memory of 3732	2924	OrderExport_URB202061165400.exe	netsh.exe
PID 2924 wrote to memory of 3732	2924	OrderExport_URB202061165400.exe	netsh.exe

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads