agenttesla | ce779c8f6ec2afbaeb75c279873b15c4fd641e5e807975b4e01dcc304ef13b79

Resubmissions

25-09-2024 16:27

240925-tydgdsycmd 10

25-09-2024 15:45

240925-s62zaatcqj 10

Analysis

max time kernel
445s
max time network
1163s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
25-09-2024 16:27

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General

Target

tmpf8bnm6k8.exe
Size

775KB
MD5

f48f307cead8414f3c2bdb05e9903474
SHA1

bc7972a88115bc42ad66eaff6e30b23f842b6c67
SHA256

ce779c8f6ec2afbaeb75c279873b15c4fd641e5e807975b4e01dcc304ef13b79
SHA512

65b677c35a6cc146d87ba1ec3d9ec55e726aea079e778b1771e3aa464672adfaaaa574be173f43a749b3ad52baae5c463698dc3e9f3136e50693650b840f3ffc
SSDEEP

12288:v6Wq4aaE6KwyF5L0Y2D1PqLDkRl6nUIOcbsEjBTJuqxqLkFA+UBtfvt21sW:tthEVaPqLYT6ueZTgkF2zvkF

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.bonnyriggdentalsurgery.com.au
Port:
587
Username:
[email protected]
Password:
eL)rV@QBKA#m
Email To:
[email protected]

Signatures

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

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
2	api.ipify.org
1	api.ipify.org
1	ip-api.com

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/4576-6-0x0000000000400000-0x00000000004C2000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4576 set thread context of 4964	4576	tmpf8bnm6k8.exe	78

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/4576-0-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral1/memory/4576-6-0x0000000000400000-0x00000000004C2000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tmpf8bnm6k8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4964	RegSvcs.exe
4964	RegSvcs.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
4576	tmpf8bnm6k8.exe
4576	tmpf8bnm6k8.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4964	RegSvcs.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4576	tmpf8bnm6k8.exe
4576	tmpf8bnm6k8.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
4576	tmpf8bnm6k8.exe
4576	tmpf8bnm6k8.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4576 wrote to memory of 4964	4576	tmpf8bnm6k8.exe	78
PID 4576 wrote to memory of 4964	4576	tmpf8bnm6k8.exe	78
PID 4576 wrote to memory of 4964	4576	tmpf8bnm6k8.exe	78
PID 4576 wrote to memory of 4964	4576	tmpf8bnm6k8.exe	78

C:\Users\Admin\AppData\Local\Temp\tmpf8bnm6k8.exe
"C:\Users\Admin\AppData\Local\Temp\tmpf8bnm6k8.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4576
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\tmpf8bnm6k8.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4964

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:3040

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4576-6-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/4576-3-0x0000000004140000-0x0000000004340000-memory.dmp

Filesize
2.0MB

Download
memory/4576-0-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/4964-9-0x0000000004BF0000-0x0000000004C56000-memory.dmp

Filesize
408KB

Download
memory/4964-7-0x0000000073B7E000-0x0000000073B7F000-memory.dmp

Filesize
4KB

Download
memory/4964-8-0x0000000005220000-0x00000000057C6000-memory.dmp

Filesize
5.6MB

Download
memory/4964-4-0x0000000000500000-0x0000000000542000-memory.dmp

Filesize
264KB

Download
memory/4964-10-0x0000000073B70000-0x0000000074321000-memory.dmp

Filesize
7.7MB

Download
memory/4964-11-0x00000000060A0000-0x0000000006132000-memory.dmp

Filesize
584KB

Download
memory/4964-12-0x0000000006180000-0x00000000061D0000-memory.dmp

Filesize
320KB

Download
memory/4964-13-0x0000000006140000-0x000000000614A000-memory.dmp

Filesize
40KB

Download
memory/4964-14-0x0000000073B7E000-0x0000000073B7F000-memory.dmp

Filesize
4KB

Download
memory/4964-15-0x0000000073B70000-0x0000000074321000-memory.dmp

Filesize
7.7MB

Download