agenttesla | bac305052b383e7166e0446daf245f490b4f73db7ba037f2e620f4212cacf2f3

General

Target

ΤΙΜΟΛΟΓΙΟ Doc_PRG211003417144356060.PDF.exe
Size

617KB
MD5

77e2a7eff380e6b378443b71247204b3
SHA1

45150f01da24eb9bb7083470c15fbf92dccafb7f
SHA256

a8f4efff89b74b63c720cff52221a7e62dc648ac40d3b2f5ab271a1e5d78b7ab
SHA512

e86b836904623a77f73e52484e18a7570a16d53212dfc4f473ac5f5bf1cdefb29a32fa35496737de56143024de6e3f26c4c60a77614cfd4e9e8f1f820d34aa24
SSDEEP

12288:6sHzOUNUSB/o5LsI1uwajJ5yvv1l2kNtPmB/EaR/GrYjQ6v0Uw:tiUmSB/o5d1ubcv9GlkrYsH/

Score

10^/10

agenttesla credential_access discovery keylogger spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.solucionesmexico.mx
Port:
21
Username:
[email protected]
Password:
dGG^ZYIxX5!B

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3688-0-0x0000000000BB0000-0x0000000000D11000-memory.dmp	upx
behavioral2/memory/3688-19-0x0000000000BB0000-0x0000000000D11000-memory.dmp	upx

Looks up external IP address via web service 1 IoCs

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

flow	ioc
16	ip-api.com

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/3688-19-0x0000000000BB0000-0x0000000000D11000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3688 set thread context of 400	3688	ΤΙΜΟΛΟΓΙΟ Doc_PRG211003417144356060.PDF.exe	93

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3752	3688	WerFault.exe	89

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	ΤΙΜΟΛΟΓΙΟ Doc_PRG211003417144356060.PDF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
400	RegSvcs.exe
400	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3688	ΤΙΜΟΛΟΓΙΟ Doc_PRG211003417144356060.PDF.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	400	RegSvcs.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3688	ΤΙΜΟΛΟΓΙΟ Doc_PRG211003417144356060.PDF.exe
3688	ΤΙΜΟΛΟΓΙΟ Doc_PRG211003417144356060.PDF.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
3688	ΤΙΜΟΛΟΓΙΟ Doc_PRG211003417144356060.PDF.exe
3688	ΤΙΜΟΛΟΓΙΟ Doc_PRG211003417144356060.PDF.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3688 wrote to memory of 400	3688	ΤΙΜΟΛΟΓΙΟ Doc_PRG211003417144356060.PDF.exe	93
PID 3688 wrote to memory of 400	3688	ΤΙΜΟΛΟΓΙΟ Doc_PRG211003417144356060.PDF.exe	93
PID 3688 wrote to memory of 400	3688	ΤΙΜΟΛΟΓΙΟ Doc_PRG211003417144356060.PDF.exe	93
PID 3688 wrote to memory of 400	3688	ΤΙΜΟΛΟΓΙΟ Doc_PRG211003417144356060.PDF.exe	93

C:\Users\Admin\AppData\Local\Temp\ΤΙΜΟΛΟΓΙΟ Doc_PRG211003417144356060.PDF.exe
"C:\Users\Admin\AppData\Local\Temp\ΤΙΜΟΛΟΓΙΟ Doc_PRG211003417144356060.PDF.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:3688
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\ΤΙΜΟΛΟΓΙΟ Doc_PRG211003417144356060.PDF.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:400
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3688 -s 764
  2⤵
  - Program crash
  PID:3752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3688 -ip 3688
1⤵
PID:724

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=4164,i,1330210614411927383,9239043499051775691,262144 --variations-seed-version --mojo-platform-channel-handle=1320 /prefetch:8
1⤵
PID:4412

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/400-17-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/400-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/400-14-0x0000000073DEE000-0x0000000073DEF000-memory.dmp

Filesize
4KB

Download
memory/400-15-0x00000000058A0000-0x0000000005E44000-memory.dmp

Filesize
5.6MB

Download
memory/400-16-0x00000000053F0000-0x0000000005456000-memory.dmp

Filesize
408KB

Download
memory/400-20-0x0000000006820000-0x0000000006870000-memory.dmp

Filesize
320KB

Download
memory/400-21-0x0000000006910000-0x00000000069A2000-memory.dmp

Filesize
584KB

Download
memory/400-22-0x00000000068A0000-0x00000000068AA000-memory.dmp

Filesize
40KB

Download
memory/400-23-0x0000000073DEE000-0x0000000073DEF000-memory.dmp

Filesize
4KB

Download
memory/400-24-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/3688-12-0x0000000003640000-0x0000000003644000-memory.dmp

Filesize
16KB

Download
memory/3688-0-0x0000000000BB0000-0x0000000000D11000-memory.dmp

Filesize
1.4MB

Download
memory/3688-19-0x0000000000BB0000-0x0000000000D11000-memory.dmp

Filesize
1.4MB

Download

Analysis

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