agenttesla | 75b653491db31cbd74319e4931c3c7939dd9af965cbeb8c5d454c7b5983300e8

General

Target

Remittance advice.exe
Size

573KB
MD5

910da75d1c40740e17a0ab0b3eb14cf1
SHA1

42461054f817eaa161787deda99bb3455ed959c7
SHA256

815f7166e2d4007e6181aef6e1f7c82a320dfb3b84a610a065db6a3cf8982873
SHA512

491d75253e91e2487e8cfdbd7309fee4a13c5641c7d12d739ee23b16b3b6510bb043a79e2a8bbfcba8716aa7244fa675074973cdf5f72dd8daf837c6a7debe6d
SSDEEP

12288:cXe9PPlowWX0t6mOQwg1Qd15CcYk0We1FxnU4xZdmWx/P8mfVt3D34PIF:5hloDX0XOf4HZI+8QVtz34wF

Score

10^/10

agenttesla credential_access discovery keylogger spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.rrcindia.co.in
Port:
587
Username:
[email protected]
Password:
Goyal@0783
Email To:
[email protected]

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/3400-0-0x0000000000130000-0x000000000027E000-memory.dmp	upx
behavioral2/memory/3400-13-0x0000000000130000-0x000000000027E000-memory.dmp	upx

Looks up external IP address via web service 2 IoCs

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

flow	ioc
13	api.ipify.org
14	api.ipify.org

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/3400-13-0x0000000000130000-0x000000000027E000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3400 set thread context of 3368	3400	Remittance advice.exe	86

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
1272	3400	WerFault.exe	82

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	Remittance advice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3368	RegSvcs.exe
3368	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3400	Remittance advice.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3368	RegSvcs.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3400	Remittance advice.exe
3400	Remittance advice.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
3400	Remittance advice.exe
3400	Remittance advice.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3400 wrote to memory of 3368	3400	Remittance advice.exe	86
PID 3400 wrote to memory of 3368	3400	Remittance advice.exe	86
PID 3400 wrote to memory of 3368	3400	Remittance advice.exe	86
PID 3400 wrote to memory of 3368	3400	Remittance advice.exe	86

C:\Users\Admin\AppData\Local\Temp\Remittance advice.exe
"C:\Users\Admin\AppData\Local\Temp\Remittance advice.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:3400
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\Remittance advice.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3368
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3400 -s 820
  2⤵
  - Program crash
  PID:1272

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3400 -ip 3400
1⤵
PID:3664

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 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

memory/3368-11-0x0000000073E40000-0x00000000745F0000-memory.dmp

Filesize
7.7MB

Download
memory/3368-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3368-8-0x0000000073E4E000-0x0000000073E4F000-memory.dmp

Filesize
4KB

Download
memory/3368-9-0x0000000005680000-0x0000000005C24000-memory.dmp

Filesize
5.6MB

Download
memory/3368-10-0x00000000051D0000-0x0000000005236000-memory.dmp

Filesize
408KB

Download
memory/3368-14-0x00000000066F0000-0x0000000006740000-memory.dmp

Filesize
320KB

Download
memory/3368-15-0x00000000067E0000-0x0000000006872000-memory.dmp

Filesize
584KB

Download
memory/3368-16-0x0000000006760000-0x000000000676A000-memory.dmp

Filesize
40KB

Download
memory/3368-17-0x0000000073E4E000-0x0000000073E4F000-memory.dmp

Filesize
4KB

Download
memory/3368-18-0x0000000073E40000-0x00000000745F0000-memory.dmp

Filesize
7.7MB

Download
memory/3400-6-0x0000000004180000-0x0000000004184000-memory.dmp

Filesize
16KB

Download
memory/3400-0-0x0000000000130000-0x000000000027E000-memory.dmp

Filesize
1.3MB

Download
memory/3400-13-0x0000000000130000-0x000000000027E000-memory.dmp

Filesize
1.3MB

Download

Analysis

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