agenttesla | 61c746b5ea4e7c67cb05e2ba0673807698da7eaed31023a8a13163ba27d8c547

General

Target

61c746b5ea4e7c67cb05e2ba0673807698da7eaed31023a8a13163ba27d8c547.exe
Size

637KB
MD5

b860477bafb4d00f95496882d8d32fb8
SHA1

e96dbcff3deab2fa47dda3b2b5698d44ce49d421
SHA256

61c746b5ea4e7c67cb05e2ba0673807698da7eaed31023a8a13163ba27d8c547
SHA512

f34851034ee5c7a2722436bf3babca249442ca6b10a28f21616fb6e3657bdf76efc6625869e6decd3973be1f0385a6610dee93224d2dcfc0175b4fc9b733ebe3
SSDEEP

12288:UsHzOUNUSB/o5LsI1uwajJ5yvv1l2ajHbHo/5J/LraRjLhiqFtSwe:3iUmSB/o5d1ubcvh3Hy5JDmR3Ewe

Score

10^/10

agenttesla credential_access discovery keylogger spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.fosna.net
Port:
21
Username:
[email protected]
Password:
(=8fPSH$KO_!

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
behavioral1/memory/1544-0-0x0000000001240000-0x00000000013AB000-memory.dmp	upx
behavioral1/memory/1544-19-0x0000000001240000-0x00000000013AB000-memory.dmp	upx

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 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/1544-19-0x0000000001240000-0x00000000013AB000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1544 set thread context of 2984	1544	61c746b5ea4e7c67cb05e2ba0673807698da7eaed31023a8a13163ba27d8c547.exe	31

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	61c746b5ea4e7c67cb05e2ba0673807698da7eaed31023a8a13163ba27d8c547.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2984	RegSvcs.exe
2984	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1544	61c746b5ea4e7c67cb05e2ba0673807698da7eaed31023a8a13163ba27d8c547.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2984	RegSvcs.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1544	61c746b5ea4e7c67cb05e2ba0673807698da7eaed31023a8a13163ba27d8c547.exe
1544	61c746b5ea4e7c67cb05e2ba0673807698da7eaed31023a8a13163ba27d8c547.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1544	61c746b5ea4e7c67cb05e2ba0673807698da7eaed31023a8a13163ba27d8c547.exe
1544	61c746b5ea4e7c67cb05e2ba0673807698da7eaed31023a8a13163ba27d8c547.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1544 wrote to memory of 2984	1544	61c746b5ea4e7c67cb05e2ba0673807698da7eaed31023a8a13163ba27d8c547.exe	31
PID 1544 wrote to memory of 2984	1544	61c746b5ea4e7c67cb05e2ba0673807698da7eaed31023a8a13163ba27d8c547.exe	31
PID 1544 wrote to memory of 2984	1544	61c746b5ea4e7c67cb05e2ba0673807698da7eaed31023a8a13163ba27d8c547.exe	31
PID 1544 wrote to memory of 2984	1544	61c746b5ea4e7c67cb05e2ba0673807698da7eaed31023a8a13163ba27d8c547.exe	31
PID 1544 wrote to memory of 2984	1544	61c746b5ea4e7c67cb05e2ba0673807698da7eaed31023a8a13163ba27d8c547.exe	31
PID 1544 wrote to memory of 2984	1544	61c746b5ea4e7c67cb05e2ba0673807698da7eaed31023a8a13163ba27d8c547.exe	31
PID 1544 wrote to memory of 2984	1544	61c746b5ea4e7c67cb05e2ba0673807698da7eaed31023a8a13163ba27d8c547.exe	31
PID 1544 wrote to memory of 2984	1544	61c746b5ea4e7c67cb05e2ba0673807698da7eaed31023a8a13163ba27d8c547.exe	31

C:\Users\Admin\AppData\Local\Temp\61c746b5ea4e7c67cb05e2ba0673807698da7eaed31023a8a13163ba27d8c547.exe
"C:\Users\Admin\AppData\Local\Temp\61c746b5ea4e7c67cb05e2ba0673807698da7eaed31023a8a13163ba27d8c547.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:1544
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\61c746b5ea4e7c67cb05e2ba0673807698da7eaed31023a8a13163ba27d8c547.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2984

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 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/1544-0-0x0000000001240000-0x00000000013AB000-memory.dmp

Filesize
1.4MB

Download
memory/1544-12-0x00000000007B0000-0x00000000007B4000-memory.dmp

Filesize
16KB

Download
memory/1544-19-0x0000000001240000-0x00000000013AB000-memory.dmp

Filesize
1.4MB

Download
memory/2984-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2984-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2984-17-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2984-20-0x0000000073DBE000-0x0000000073DBF000-memory.dmp

Filesize
4KB

Download
memory/2984-21-0x0000000073DB0000-0x000000007449E000-memory.dmp

Filesize
6.9MB

Download
memory/2984-22-0x0000000073DBE000-0x0000000073DBF000-memory.dmp

Filesize
4KB

Download
memory/2984-23-0x0000000073DB0000-0x000000007449E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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