agenttesla | 363da150d891da7bb5da8056414882429067a0fcb27f58363567567bf18a323e

General

Target

987656789009800.exe
Size

598KB
MD5

ac4ab3c4b9386b0355d8645f77f91e3e
SHA1

b87289c4a2290c6efb49ae38373a174f7d34c4e1
SHA256

363da150d891da7bb5da8056414882429067a0fcb27f58363567567bf18a323e
SHA512

7d7590ca7b41fb0eb0b31649aa2c6ba69830b55a28df49c5a089b08824c0f91fbf1f2173c2ed9f95e713612cfbfbc9dbe684bd84cdc5fb70816f07184ecf10a2
SSDEEP

12288:TquErHF6xC9D6DmR1J98w4oknqOOCyQfKSpoCxFI66E9:qrl6kD68JmlotQflposIjs

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\tapestrylike.vbs	tapestrylike.exe

Executes dropped EXE 1 IoCs

pid	Process
884	tapestrylike.exe

Loads dropped DLL 1 IoCs

pid	Process
1780	987656789009800.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 3 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/1780-13-0x0000000000820000-0x0000000000978000-memory.dmp	autoit_exe
behavioral1/memory/884-24-0x0000000000850000-0x0000000000C50000-memory.dmp	autoit_exe
behavioral1/memory/884-37-0x0000000000CC0000-0x0000000000E18000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 884 set thread context of 2576	884	tapestrylike.exe	32

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1780-0-0x0000000000820000-0x0000000000978000-memory.dmp	upx
behavioral1/files/0x0007000000018636-9.dat	upx
behavioral1/memory/884-15-0x0000000000CC0000-0x0000000000E18000-memory.dmp	upx
behavioral1/memory/1780-13-0x0000000000820000-0x0000000000978000-memory.dmp	upx
behavioral1/memory/884-37-0x0000000000CC0000-0x0000000000E18000-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	987656789009800.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tapestrylike.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2576	RegSvcs.exe
2576	RegSvcs.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
884	tapestrylike.exe
884	tapestrylike.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2576	RegSvcs.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1780	987656789009800.exe
1780	987656789009800.exe
884	tapestrylike.exe
884	tapestrylike.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1780	987656789009800.exe
1780	987656789009800.exe
884	tapestrylike.exe
884	tapestrylike.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1780 wrote to memory of 884	1780	987656789009800.exe	31
PID 1780 wrote to memory of 884	1780	987656789009800.exe	31
PID 1780 wrote to memory of 884	1780	987656789009800.exe	31
PID 1780 wrote to memory of 884	1780	987656789009800.exe	31
PID 884 wrote to memory of 2576	884	tapestrylike.exe	32
PID 884 wrote to memory of 2576	884	tapestrylike.exe	32
PID 884 wrote to memory of 2576	884	tapestrylike.exe	32
PID 884 wrote to memory of 2576	884	tapestrylike.exe	32
PID 884 wrote to memory of 2576	884	tapestrylike.exe	32
PID 884 wrote to memory of 2576	884	tapestrylike.exe	32
PID 884 wrote to memory of 2576	884	tapestrylike.exe	32
PID 884 wrote to memory of 2576	884	tapestrylike.exe	32

C:\Users\Admin\AppData\Local\Temp\987656789009800.exe
"C:\Users\Admin\AppData\Local\Temp\987656789009800.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1780
- C:\Users\Admin\AppData\Local\interseminating\tapestrylike.exe
  "C:\Users\Admin\AppData\Local\Temp\987656789009800.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:884
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\987656789009800.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2576

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

\Users\Admin\AppData\Local\interseminating\tapestrylike.exe

Filesize
598KB

MD5
ac4ab3c4b9386b0355d8645f77f91e3e

SHA1
b87289c4a2290c6efb49ae38373a174f7d34c4e1

SHA256
363da150d891da7bb5da8056414882429067a0fcb27f58363567567bf18a323e

SHA512
7d7590ca7b41fb0eb0b31649aa2c6ba69830b55a28df49c5a089b08824c0f91fbf1f2173c2ed9f95e713612cfbfbc9dbe684bd84cdc5fb70816f07184ecf10a2

Download Submit
memory/884-37-0x0000000000CC0000-0x0000000000E18000-memory.dmp

Filesize
1.3MB

Download
memory/884-15-0x0000000000CC0000-0x0000000000E18000-memory.dmp

Filesize
1.3MB

Download
memory/884-24-0x0000000000850000-0x0000000000C50000-memory.dmp

Filesize
4.0MB

Download
memory/1780-7-0x0000000000B70000-0x0000000000F70000-memory.dmp

Filesize
4.0MB

Download
memory/1780-13-0x0000000000820000-0x0000000000978000-memory.dmp

Filesize
1.3MB

Download
memory/1780-40-0x0000000000B70000-0x0000000000F70000-memory.dmp

Filesize
4.0MB

Download
memory/1780-0-0x0000000000820000-0x0000000000978000-memory.dmp

Filesize
1.3MB

Download
memory/2576-35-0x0000000000090000-0x00000000000D2000-memory.dmp

Filesize
264KB

Download
memory/2576-32-0x0000000000090000-0x00000000000D2000-memory.dmp

Filesize
264KB

Download
memory/2576-28-0x0000000000090000-0x00000000000D2000-memory.dmp

Filesize
264KB

Download
memory/2576-38-0x000000007498E000-0x000000007498F000-memory.dmp

Filesize
4KB

Download
memory/2576-39-0x0000000074980000-0x000000007506E000-memory.dmp

Filesize
6.9MB

Download
memory/2576-26-0x0000000000090000-0x00000000000D2000-memory.dmp

Filesize
264KB

Download
memory/2576-41-0x000000007498E000-0x000000007498F000-memory.dmp

Filesize
4KB

Download
memory/2576-42-0x0000000074980000-0x000000007506E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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