agenttesla | c38dc2c405fb2b894bd668cbcf714b3db28489a818a76f3907c66cf321363909

General

Target

???? ??????? ?? ???????.exe
Size

538KB
MD5

959e9ad055d2267996243aac23a9609c
SHA1

3d6d40e1cf5166cf3234e7b20d4f76cb37d38314
SHA256

d1352b4a3c53a563c8d970475a40069298854458db6a2db0f98020fbc1d7a3a2
SHA512

8a1fd6f162e55261236f7b95d0458f8b11f9ab738515842861618d492709d1019b5cd9e4dd5448d0884798d97bf0e529fa4f40e68e3b2070e856b15db22dc96a

Score

10^/10

agenttesla collection coreentity keylogger rezer0 spyware stealer trojan

Malware Config

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
behavioral1/memory/1668-57-0x00000000003B0000-0x00000000003B8000-memory.dmp	coreentity

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1668-61-0x0000000005050000-0x00000000050A0000-memory.dmp	family_agenttesla

CoreCCC Packer 1 IoCs

Detects CoreCCC packer used to load .NET malware.

Processes:

resource	yara_rule
behavioral1/memory/1668-54-0x0000000001220000-0x00000000012AC000-memory.dmp	coreccc

ReZer0 packer 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1668-58-0x00000000007E0000-0x0000000000838000-memory.dmp	rezer0

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:

____ _______ __ _______.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	____ _______ __ _______.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	____ _______ __ _______.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	____ _______ __ _______.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

1900 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

____ _______ __ _______.exe

pid process

1668 ____ _______ __ _______.exe
1668 ____ _______ __ _______.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

____ _______ __ _______.exe

description pid process

Token: SeDebugPrivilege 1668 ____ _______ __ _______.exe

pid	process
1900	schtasks.exe

pid	process
1668	____ _______ __ _______.exe
1668	____ _______ __ _______.exe

description	pid	process
Token: SeDebugPrivilege	1668	____ _______ __ _______.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

____ _______ __ _______.exe

description	pid	process	target process
PID 1668 wrote to memory of 1900	1668	____ _______ __ _______.exe	schtasks.exe
PID 1668 wrote to memory of 1900	1668	____ _______ __ _______.exe	schtasks.exe
PID 1668 wrote to memory of 1900	1668	____ _______ __ _______.exe	schtasks.exe
PID 1668 wrote to memory of 1900	1668	____ _______ __ _______.exe	schtasks.exe

outlook_office_path 1 IoCs

Processes:

____ _______ __ _______.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	____ _______ __ _______.exe

outlook_win_path 1 IoCs

Processes:

____ _______ __ _______.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	____ _______ __ _______.exe

C:\Users\Admin\AppData\Local\Temp\____ _______ __ _______.exe
"C:\Users\Admin\AppData\Local\Temp\____ _______ __ _______.exe"
1⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1668

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wpJAeQlZavy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1A26.tmp"
2⤵
- Creates scheduled task(s)
PID:1900

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

Credential Access

Credentials in Files

2

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp1A26.tmp
Filesize
1KB

MD5
44db49c31a396ac57a785d1167f79a0b

SHA1
80dce6703200225a560489ce0d5802f22af873a8

SHA256
cf99cdb50bcd5c30d2b0d3ac1cb6821b66204a6de67d9f6d2ac04f78b6345881

SHA512
4c90f25f6fed94246db461e8d8a5622d81978109e643ef9db5f2fab7a5cadf0eeb02b9528ea80c5f1e6baba89d27998c0d584dd2cf970a98c5601fa638007bd9

Download Submit
memory/1668-54-0x0000000001220000-0x00000000012AC000-memory.dmp

Filesize
560KB

Download
memory/1668-55-0x0000000000730000-0x0000000000790000-memory.dmp

Filesize
384KB

Download
memory/1668-56-0x0000000075BA1000-0x0000000075BA3000-memory.dmp

Filesize
8KB

Download
memory/1668-57-0x00000000003B0000-0x00000000003B8000-memory.dmp

Filesize
32KB

Download
memory/1668-58-0x00000000007E0000-0x0000000000838000-memory.dmp

Filesize
352KB

Download
memory/1668-61-0x0000000005050000-0x00000000050A0000-memory.dmp

Filesize
320KB

Download
memory/1900-59-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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