agenttesla | 82f1400b70355ba0cff1024a37daf4e3c4137859169c219dc242116ee1f3b042

General

Target

INVOICE-098765.exe
Size

651KB
MD5

06ef062a237dc02027b7122c821763a9
SHA1

0c504f1012ecc2879ec5f2f88da5bbc58e594941
SHA256

5e4edc7e45904e83bfd4cc542ed88145256f001b7099628b76d775fbfab0cba2
SHA512

5f266ae20c7dc5e6793689401b279a17920a7a553cb31d0a209caa425aa5bd6d7e1e99c01567e7de526c693dfb9769e3d3fdcc2a9afcaffb91cbc7535971c5bc
SSDEEP

12288:wYV6MorX7qzuC3QHO9FQVHPF51jgcbnhg7q51S8O3ghkFkw:PBXu9HGaVHbni+5/aCw

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.antoniomayol.com:21
Port:
21
Username:
[email protected]
Password:
cMhKDQUk1{;%

Signatures

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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Myriopoda.vbs	Myriopoda.exe

Executes dropped EXE 1 IoCs

pid	Process
1848	Myriopoda.exe

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
15	ip-api.com

AutoIT Executable 3 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/1576-13-0x0000000000CB0000-0x0000000000E23000-memory.dmp	autoit_exe
behavioral2/memory/1848-22-0x0000000001580000-0x0000000001980000-memory.dmp	autoit_exe
behavioral2/memory/1848-26-0x00000000002B0000-0x0000000000423000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1848 set thread context of 3644	1848	Myriopoda.exe	83

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1576-0-0x0000000000CB0000-0x0000000000E23000-memory.dmp	upx
behavioral2/files/0x0007000000023cae-10.dat	upx
behavioral2/memory/1576-13-0x0000000000CB0000-0x0000000000E23000-memory.dmp	upx
behavioral2/memory/1848-11-0x00000000002B0000-0x0000000000423000-memory.dmp	upx
behavioral2/memory/1848-26-0x00000000002B0000-0x0000000000423000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 3 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	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	INVOICE-098765.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Myriopoda.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3644	RegSvcs.exe
3644	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1848	Myriopoda.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3644	RegSvcs.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1576	INVOICE-098765.exe
1576	INVOICE-098765.exe
1848	Myriopoda.exe
1848	Myriopoda.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1576	INVOICE-098765.exe
1576	INVOICE-098765.exe
1848	Myriopoda.exe
1848	Myriopoda.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1576 wrote to memory of 1848	1576	INVOICE-098765.exe	82
PID 1576 wrote to memory of 1848	1576	INVOICE-098765.exe	82
PID 1576 wrote to memory of 1848	1576	INVOICE-098765.exe	82
PID 1848 wrote to memory of 3644	1848	Myriopoda.exe	83
PID 1848 wrote to memory of 3644	1848	Myriopoda.exe	83
PID 1848 wrote to memory of 3644	1848	Myriopoda.exe	83
PID 1848 wrote to memory of 3644	1848	Myriopoda.exe	83

C:\Users\Admin\AppData\Local\Temp\INVOICE-098765.exe
"C:\Users\Admin\AppData\Local\Temp\INVOICE-098765.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1576
- C:\Users\Admin\AppData\Local\ageless\Myriopoda.exe
  "C:\Users\Admin\AppData\Local\Temp\INVOICE-098765.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - 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:1848
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\INVOICE-098765.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

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

C:\Users\Admin\AppData\Local\Temp\anaboly

Filesize
239KB

MD5
f6295a8aec53a6e10da37606928972cb

SHA1
c0040124b38962915c896ec93457f53060728f4a

SHA256
c677455be7d5841c0c6ee47b7e922e47b8bb05bfe37b3fc244dbd049c8ad7017

SHA512
3facb5388e34fc6db0107e543e112c079c3c32115ab1065ae8c2012cb708ebb434b4bb23b2774a82e7bb967e50429fbc4fad88cd854a1ac8a540701908f86923

Download Submit
C:\Users\Admin\AppData\Local\ageless\Myriopoda.exe

Filesize
651KB

MD5
06ef062a237dc02027b7122c821763a9

SHA1
0c504f1012ecc2879ec5f2f88da5bbc58e594941

SHA256
5e4edc7e45904e83bfd4cc542ed88145256f001b7099628b76d775fbfab0cba2

SHA512
5f266ae20c7dc5e6793689401b279a17920a7a553cb31d0a209caa425aa5bd6d7e1e99c01567e7de526c693dfb9769e3d3fdcc2a9afcaffb91cbc7535971c5bc

Download Submit
memory/1576-7-0x0000000001750000-0x0000000001B50000-memory.dmp

Filesize
4.0MB

Download
memory/1576-13-0x0000000000CB0000-0x0000000000E23000-memory.dmp

Filesize
1.4MB

Download
memory/1576-0-0x0000000000CB0000-0x0000000000E23000-memory.dmp

Filesize
1.4MB

Download
memory/1848-26-0x00000000002B0000-0x0000000000423000-memory.dmp

Filesize
1.4MB

Download
memory/1848-22-0x0000000001580000-0x0000000001980000-memory.dmp

Filesize
4.0MB

Download
memory/1848-11-0x00000000002B0000-0x0000000000423000-memory.dmp

Filesize
1.4MB

Download
memory/3644-24-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3644-27-0x000000007481E000-0x000000007481F000-memory.dmp

Filesize
4KB

Download
memory/3644-28-0x0000000005AA0000-0x0000000006044000-memory.dmp

Filesize
5.6MB

Download
memory/3644-29-0x00000000055F0000-0x0000000005656000-memory.dmp

Filesize
408KB

Download
memory/3644-30-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/3644-31-0x0000000006710000-0x0000000006760000-memory.dmp

Filesize
320KB

Download
memory/3644-32-0x0000000006800000-0x0000000006892000-memory.dmp

Filesize
584KB

Download
memory/3644-33-0x0000000006790000-0x000000000679A000-memory.dmp

Filesize
40KB

Download
memory/3644-34-0x000000007481E000-0x000000007481F000-memory.dmp

Filesize
4KB

Download
memory/3644-35-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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