agenttesla | 19973edaeb78e2beb249cee6a2de0f496ac62809d7f33a6729d2fb3130b264ee

General

Target

INV09876789AS.exe
Size

520KB
MD5

a295f1e268dc1500b898844b02d58248
SHA1

c8f629f60c14bbeb810d80e6918ed7ee56ac50f5
SHA256

dd6f99ed2cc3586d2af65cc1b359ccfa3448cde53ca4465f9ffe3e8bc4c86e12
SHA512

b68440775f974b2449a3be357e18786d7cfce5996ab3c9f287805393f5ac0cfa8d74a3de2322caf7cc5fb667b7640caf8e720d06b9dcfb93e8e9f61297eb9c28
SSDEEP

12288:v6Wq4aaE6KwyF5L0Y2D1PqLbRxKFLCiN5qwtyLN:tthEVaPqLbRxKdCij1IN

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\vaccinatory.vbs	vaccinatory.exe

Executes dropped EXE 1 IoCs

pid	Process
5008	vaccinatory.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 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/1752-13-0x0000000000400000-0x00000000004C2000-memory.dmp	autoit_exe
behavioral2/memory/5008-29-0x0000000000400000-0x00000000004C2000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5008 set thread context of 4964	5008	vaccinatory.exe	84

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1752-0-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral2/files/0x0007000000023c74-10.dat	upx
behavioral2/memory/1752-13-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral2/memory/5008-29-0x0000000000400000-0x00000000004C2000-memory.dmp	upx

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2604	5008	WerFault.exe	83

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	INV09876789AS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vaccinatory.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
5008	vaccinatory.exe
5008	vaccinatory.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4964	RegSvcs.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1752	INV09876789AS.exe
1752	INV09876789AS.exe
5008	vaccinatory.exe
5008	vaccinatory.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1752	INV09876789AS.exe
1752	INV09876789AS.exe
5008	vaccinatory.exe
5008	vaccinatory.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1752 wrote to memory of 5008	1752	INV09876789AS.exe	83
PID 1752 wrote to memory of 5008	1752	INV09876789AS.exe	83
PID 1752 wrote to memory of 5008	1752	INV09876789AS.exe	83
PID 5008 wrote to memory of 4964	5008	vaccinatory.exe	84
PID 5008 wrote to memory of 4964	5008	vaccinatory.exe	84
PID 5008 wrote to memory of 4964	5008	vaccinatory.exe	84
PID 5008 wrote to memory of 4964	5008	vaccinatory.exe	84

C:\Users\Admin\AppData\Local\Temp\INV09876789AS.exe
"C:\Users\Admin\AppData\Local\Temp\INV09876789AS.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Users\Admin\AppData\Local\turbinals\vaccinatory.exe
  "C:\Users\Admin\AppData\Local\Temp\INV09876789AS.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:5008
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\INV09876789AS.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4964
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5008 -s 728
    3⤵
    - Program crash
    PID:2604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5008 -ip 5008
1⤵
PID:664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

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\Dalis

Filesize
239KB

MD5
885b6ea3051451ee410c3ef9c7f8f85e

SHA1
3bb9e425a17d324652c5a304f89a78774564b93d

SHA256
3ecab50f5e3b9ddef521b28f34aa8bf5734f0f313f70440cf9e439c9b0653c0b

SHA512
683551b88887c4295fc667736961fc0f96ba2a8c90981e81f255bd21f09a442de1ed5f6703c342388e4926099123046f941a47f6d69132baa0f85b8df9ee9ede

Download Submit
C:\Users\Admin\AppData\Local\turbinals\vaccinatory.exe

Filesize
520KB

MD5
a295f1e268dc1500b898844b02d58248

SHA1
c8f629f60c14bbeb810d80e6918ed7ee56ac50f5

SHA256
dd6f99ed2cc3586d2af65cc1b359ccfa3448cde53ca4465f9ffe3e8bc4c86e12

SHA512
b68440775f974b2449a3be357e18786d7cfce5996ab3c9f287805393f5ac0cfa8d74a3de2322caf7cc5fb667b7640caf8e720d06b9dcfb93e8e9f61297eb9c28

Download Submit
memory/1752-0-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/1752-7-0x0000000003F50000-0x0000000004050000-memory.dmp

Filesize
1024KB

Download
memory/1752-13-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/4964-25-0x00000000053B0000-0x0000000005954000-memory.dmp

Filesize
5.6MB

Download
memory/4964-23-0x0000000000700000-0x0000000000742000-memory.dmp

Filesize
264KB

Download
memory/4964-24-0x00000000738BE000-0x00000000738BF000-memory.dmp

Filesize
4KB

Download
memory/4964-26-0x0000000004E70000-0x0000000004ED6000-memory.dmp

Filesize
408KB

Download
memory/4964-27-0x00000000738B0000-0x0000000074060000-memory.dmp

Filesize
7.7MB

Download
memory/4964-30-0x0000000006030000-0x0000000006080000-memory.dmp

Filesize
320KB

Download
memory/4964-31-0x0000000006120000-0x00000000061B2000-memory.dmp

Filesize
584KB

Download
memory/4964-32-0x00000000060B0000-0x00000000060BA000-memory.dmp

Filesize
40KB

Download
memory/4964-33-0x00000000738BE000-0x00000000738BF000-memory.dmp

Filesize
4KB

Download
memory/4964-34-0x00000000738B0000-0x0000000074060000-memory.dmp

Filesize
7.7MB

Download
memory/5008-21-0x0000000002F30000-0x0000000003030000-memory.dmp

Filesize
1024KB

Download
memory/5008-29-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download

Analysis

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