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
5072	tapestrylike.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
14	ip-api.com

AutoIT Executable 3 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/4572-12-0x0000000000B20000-0x0000000000C78000-memory.dmp	autoit_exe
behavioral2/memory/5072-22-0x0000000001680000-0x0000000001A80000-memory.dmp	autoit_exe
behavioral2/memory/5072-26-0x00000000003E0000-0x0000000000538000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5072 set thread context of 4536	5072	tapestrylike.exe	85

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4572-0-0x0000000000B20000-0x0000000000C78000-memory.dmp	upx
behavioral2/files/0x000b000000023bae-10.dat	upx
behavioral2/memory/4572-12-0x0000000000B20000-0x0000000000C78000-memory.dmp	upx
behavioral2/memory/5072-13-0x00000000003E0000-0x0000000000538000-memory.dmp	upx
behavioral2/memory/5072-26-0x00000000003E0000-0x0000000000538000-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
4536	RegSvcs.exe
4536	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
5072	tapestrylike.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4536	RegSvcs.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
4572	987656789009800.exe
4572	987656789009800.exe
4572	987656789009800.exe
5072	tapestrylike.exe
5072	tapestrylike.exe
5072	tapestrylike.exe

Suspicious use of SendNotifyMessage 6 IoCs

pid	Process
4572	987656789009800.exe
4572	987656789009800.exe
4572	987656789009800.exe
5072	tapestrylike.exe
5072	tapestrylike.exe
5072	tapestrylike.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4572 wrote to memory of 5072	4572	987656789009800.exe	83
PID 4572 wrote to memory of 5072	4572	987656789009800.exe	83
PID 4572 wrote to memory of 5072	4572	987656789009800.exe	83
PID 5072 wrote to memory of 4536	5072	tapestrylike.exe	85
PID 5072 wrote to memory of 4536	5072	tapestrylike.exe	85
PID 5072 wrote to memory of 4536	5072	tapestrylike.exe	85
PID 5072 wrote to memory of 4536	5072	tapestrylike.exe	85

C:\Users\Admin\AppData\Local\Temp\987656789009800.exe
"C:\Users\Admin\AppData\Local\Temp\987656789009800.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4572
- 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:5072
- - 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:4536

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

Loading Replay Monitor...

Downloads

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

Filesize
239KB

MD5
f02f9d19d8366763ebcf12ab913fbc1e

SHA1
44af25633289033e91700a43c3338df2a8db483e

SHA256
3f99fed20acf9dd1e49184c4f180507366b43587e1ee51c1434e40c06449d4cd

SHA512
714c5cf8264ffed8919511b239ac2eafb898329b8cf34bb9dd98f7d7926ab3b481317254ce4350776ba407767653adf0f8c41cde42a533e025712d8c09e78652

Download Submit
C:\Users\Admin\AppData\Local\interseminating\tapestrylike.exe

Filesize
598KB

MD5
ac4ab3c4b9386b0355d8645f77f91e3e

SHA1
b87289c4a2290c6efb49ae38373a174f7d34c4e1

SHA256
363da150d891da7bb5da8056414882429067a0fcb27f58363567567bf18a323e

SHA512
7d7590ca7b41fb0eb0b31649aa2c6ba69830b55a28df49c5a089b08824c0f91fbf1f2173c2ed9f95e713612cfbfbc9dbe684bd84cdc5fb70816f07184ecf10a2

Download Submit
memory/4536-27-0x0000000073F6E000-0x0000000073F6F000-memory.dmp

Filesize
4KB

Download
memory/4536-35-0x0000000073F60000-0x0000000074710000-memory.dmp

Filesize
7.7MB

Download
memory/4536-24-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4536-34-0x0000000073F6E000-0x0000000073F6F000-memory.dmp

Filesize
4KB

Download
memory/4536-33-0x0000000006A90000-0x0000000006A9A000-memory.dmp

Filesize
40KB

Download
memory/4536-28-0x0000000005BD0000-0x0000000006174000-memory.dmp

Filesize
5.6MB

Download
memory/4536-29-0x0000000005720000-0x0000000005786000-memory.dmp

Filesize
408KB

Download
memory/4536-30-0x0000000073F60000-0x0000000074710000-memory.dmp

Filesize
7.7MB

Download
memory/4536-31-0x0000000006A10000-0x0000000006A60000-memory.dmp

Filesize
320KB

Download
memory/4536-32-0x0000000006B00000-0x0000000006B92000-memory.dmp

Filesize
584KB

Download
memory/4572-12-0x0000000000B20000-0x0000000000C78000-memory.dmp

Filesize
1.3MB

Download
memory/4572-0-0x0000000000B20000-0x0000000000C78000-memory.dmp

Filesize
1.3MB

Download
memory/4572-7-0x0000000000D50000-0x0000000001150000-memory.dmp

Filesize
4.0MB

Download
memory/5072-13-0x00000000003E0000-0x0000000000538000-memory.dmp

Filesize
1.3MB

Download
memory/5072-26-0x00000000003E0000-0x0000000000538000-memory.dmp

Filesize
1.3MB

Download
memory/5072-22-0x0000000001680000-0x0000000001A80000-memory.dmp

Filesize
4.0MB

Download

Analysis

Sharing