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
1148	vaccinatory.exe

Loads dropped DLL 1 IoCs

pid	Process
2604	INV09876789AS.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
4	ip-api.com

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/2604-15-0x0000000000400000-0x00000000004C2000-memory.dmp	autoit_exe
behavioral1/memory/1148-33-0x0000000000400000-0x00000000004C2000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1148 set thread context of 2848	1148	vaccinatory.exe	30

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2604-0-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral1/files/0x000800000001957c-9.dat	upx
behavioral1/memory/1148-16-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral1/memory/2604-15-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral1/memory/1148-33-0x0000000000400000-0x00000000004C2000-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 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	INV09876789AS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vaccinatory.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2848	RegSvcs.exe
2848	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1148	vaccinatory.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2848	RegSvcs.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2604	INV09876789AS.exe
2604	INV09876789AS.exe
1148	vaccinatory.exe
1148	vaccinatory.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
2604	INV09876789AS.exe
2604	INV09876789AS.exe
1148	vaccinatory.exe
1148	vaccinatory.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2604 wrote to memory of 1148	2604	INV09876789AS.exe	29
PID 2604 wrote to memory of 1148	2604	INV09876789AS.exe	29
PID 2604 wrote to memory of 1148	2604	INV09876789AS.exe	29
PID 2604 wrote to memory of 1148	2604	INV09876789AS.exe	29
PID 1148 wrote to memory of 2848	1148	vaccinatory.exe	30
PID 1148 wrote to memory of 2848	1148	vaccinatory.exe	30
PID 1148 wrote to memory of 2848	1148	vaccinatory.exe	30
PID 1148 wrote to memory of 2848	1148	vaccinatory.exe	30
PID 1148 wrote to memory of 2848	1148	vaccinatory.exe	30
PID 1148 wrote to memory of 2848	1148	vaccinatory.exe	30
PID 1148 wrote to memory of 2848	1148	vaccinatory.exe	30
PID 1148 wrote to memory of 2848	1148	vaccinatory.exe	30

C:\Users\Admin\AppData\Local\Temp\INV09876789AS.exe
"C:\Users\Admin\AppData\Local\Temp\INV09876789AS.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2604
- 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:1148
- - 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:2848

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
\Users\Admin\AppData\Local\turbinals\vaccinatory.exe

Filesize
520KB

MD5
a295f1e268dc1500b898844b02d58248

SHA1
c8f629f60c14bbeb810d80e6918ed7ee56ac50f5

SHA256
dd6f99ed2cc3586d2af65cc1b359ccfa3448cde53ca4465f9ffe3e8bc4c86e12

SHA512
b68440775f974b2449a3be357e18786d7cfce5996ab3c9f287805393f5ac0cfa8d74a3de2322caf7cc5fb667b7640caf8e720d06b9dcfb93e8e9f61297eb9c28

Download Submit
memory/1148-33-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/1148-16-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/1148-25-0x00000000037C0000-0x00000000039C0000-memory.dmp

Filesize
2.0MB

Download
memory/2604-7-0x0000000002F80000-0x0000000003180000-memory.dmp

Filesize
2.0MB

Download
memory/2604-15-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2604-12-0x0000000003980000-0x0000000003A42000-memory.dmp

Filesize
776KB

Download
memory/2604-0-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2848-27-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2848-29-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2848-31-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2848-34-0x000000007468E000-0x000000007468F000-memory.dmp

Filesize
4KB

Download
memory/2848-35-0x0000000074680000-0x0000000074D6E000-memory.dmp

Filesize
6.9MB

Download
memory/2848-36-0x000000007468E000-0x000000007468F000-memory.dmp

Filesize
4KB

Download
memory/2848-37-0x0000000074680000-0x0000000074D6E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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