agenttesla | 1366510b06b23b46e8de8bb22e63cc6052bed981f3b41aecc23fb8e6c654734e

General

Target

a1b019d4fae8f5f9728e78151a8ed69f_JaffaCakes118.exe
Size

354KB
MD5

a1b019d4fae8f5f9728e78151a8ed69f
SHA1

1ba5ebd26b62ec8abc846fe67b812493862978ed
SHA256

1366510b06b23b46e8de8bb22e63cc6052bed981f3b41aecc23fb8e6c654734e
SHA512

22f47ec8b77279b8aa9802cde893aa1a8524d8fe6fff38d0252401ed5ef71abac82cdf0e6e119bc89ab32955e0af8ba2b6fe4b844e02d18eb0289fa645f41b5b
SSDEEP

6144:dvB9U/NhUTtwQmh1+cOPfezP2tSTcRmpbT5DExuKu3yP7ooLMM:dZ9U/NMKf+cGoTcRcbTFEwVyp

Score

10^/10

agenttesla collection keylogger spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.radianthospitals.org
Port:
587
Username:
[email protected]
Password:
radiant2017

Signatures

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

AgentTesla payload 6 IoCs

resource	yara_rule
behavioral2/memory/1456-12-0x0000000000860000-0x000000000089C000-memory.dmp	family_agenttesla
behavioral2/memory/1456-14-0x0000000000400000-0x0000000000485000-memory.dmp	family_agenttesla
behavioral2/memory/1456-11-0x0000000000860000-0x000000000089C000-memory.dmp	family_agenttesla
behavioral2/memory/1456-10-0x0000000000400000-0x0000000000485000-memory.dmp	family_agenttesla
behavioral2/memory/1456-8-0x0000000000400000-0x0000000000485000-memory.dmp	family_agenttesla
behavioral2/memory/1456-26-0x0000000000400000-0x0000000000485000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	a1b019d4fae8f5f9728e78151a8ed69f_JaffaCakes118.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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
T1552.001
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
T1552.001
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
T1552.001

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2436-0-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral2/memory/1456-7-0x0000000000400000-0x0000000000485000-memory.dmp	upx
behavioral2/memory/1456-14-0x0000000000400000-0x0000000000485000-memory.dmp	upx
behavioral2/memory/2436-13-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral2/memory/1456-10-0x0000000000400000-0x0000000000485000-memory.dmp	upx
behavioral2/memory/1456-8-0x0000000000400000-0x0000000000485000-memory.dmp	upx
behavioral2/memory/1456-5-0x0000000000400000-0x0000000000485000-memory.dmp	upx

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a1b019d4fae8f5f9728e78151a8ed69f_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a1b019d4fae8f5f9728e78151a8ed69f_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a1b019d4fae8f5f9728e78151a8ed69f_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2436 set thread context of 1456	2436	a1b019d4fae8f5f9728e78151a8ed69f_JaffaCakes118.exe	88

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2436	a1b019d4fae8f5f9728e78151a8ed69f_JaffaCakes118.exe
2436	a1b019d4fae8f5f9728e78151a8ed69f_JaffaCakes118.exe
1456	a1b019d4fae8f5f9728e78151a8ed69f_JaffaCakes118.exe
1456	a1b019d4fae8f5f9728e78151a8ed69f_JaffaCakes118.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2436	a1b019d4fae8f5f9728e78151a8ed69f_JaffaCakes118.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1456	a1b019d4fae8f5f9728e78151a8ed69f_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1456	a1b019d4fae8f5f9728e78151a8ed69f_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2436 wrote to memory of 1456	2436	a1b019d4fae8f5f9728e78151a8ed69f_JaffaCakes118.exe	88
PID 2436 wrote to memory of 1456	2436	a1b019d4fae8f5f9728e78151a8ed69f_JaffaCakes118.exe	88
PID 2436 wrote to memory of 1456	2436	a1b019d4fae8f5f9728e78151a8ed69f_JaffaCakes118.exe	88

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a1b019d4fae8f5f9728e78151a8ed69f_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a1b019d4fae8f5f9728e78151a8ed69f_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\a1b019d4fae8f5f9728e78151a8ed69f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a1b019d4fae8f5f9728e78151a8ed69f_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2436
- C:\Users\Admin\AppData\Local\Temp\a1b019d4fae8f5f9728e78151a8ed69f_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\a1b019d4fae8f5f9728e78151a8ed69f_JaffaCakes118.exe"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1456

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4104,i,1400471177590024469,587385956640537806,262144 --variations-seed-version --mojo-platform-channel-handle=4628 /prefetch:8
1⤵
PID:4952

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1456-8-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1456-25-0x0000000004B80000-0x0000000005124000-memory.dmp

Filesize
5.6MB

Download
memory/1456-33-0x0000000006160000-0x000000000616A000-memory.dmp

Filesize
40KB

Download
memory/1456-31-0x0000000005E90000-0x0000000005EE0000-memory.dmp

Filesize
320KB

Download
memory/1456-7-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1456-12-0x0000000000860000-0x000000000089C000-memory.dmp

Filesize
240KB

Download
memory/1456-14-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1456-30-0x0000000005890000-0x00000000058F6000-memory.dmp

Filesize
408KB

Download
memory/1456-10-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1456-29-0x0000000005850000-0x0000000005868000-memory.dmp

Filesize
96KB

Download
memory/1456-26-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1456-5-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1456-28-0x0000000004A90000-0x0000000004B2C000-memory.dmp

Filesize
624KB

Download
memory/1456-11-0x0000000000860000-0x000000000089C000-memory.dmp

Filesize
240KB

Download
memory/1456-27-0x00000000049A0000-0x0000000004A32000-memory.dmp

Filesize
584KB

Download
memory/2436-0-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2436-1-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

Filesize
4KB

Download
memory/2436-13-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2436-4-0x0000000003F70000-0x0000000003F71000-memory.dmp

Filesize
4KB

Download
memory/2436-2-0x0000000000B30000-0x0000000000B40000-memory.dmp

Filesize
64KB

Download

Analysis

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