agenttesla | 1612a197144adfe1b30ca1c680e93d2ee916d46be0b7b163bf5afb212cff4155

General

Target

Quotation.exe
Size

1.1MB
MD5

816b7984251ee4c846a7f0d6160624e2
SHA1

be82357d711260a412103e7fde8785febd060974
SHA256

648ee80543d70f070c497309e4c7ce090254374da938799074de93bdaafaff5a
SHA512

81e035b9ffd16b8a31ab23f1d2bf621954cd42b8c0fdf0daffbac12f1964d41d949af68a06259e27bcc8163221cbfdb05f300eca7151ff901a2bcd36ca8b7a4c
SSDEEP

24576:G4nhDoAFAcvHumQbl7nu5v12dUC5YpdBNFQWEZNXLGQ7WczkxFnfbP9:G+hkJcvfyl7nu5vaUCMd5iNXKQKczg

Score

10^/10

agenttesla guloader discovery downloader keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.showpiece.trillennium.biz
Port:
587
Username:
[email protected]
Password:
3KJ[T.3]fsSW
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Agenttesla family
agenttesla
Guloader family
guloader
Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader

Loads dropped DLL 1 IoCs

pid	Process
1876	Quotation.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
5	drive.google.com
3	drive.google.com

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
15	api.ipify.org
16	api.ipify.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2744	Quotation.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1876	Quotation.exe
2744	Quotation.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1876 set thread context of 2744	1876	Quotation.exe	30

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\Azonic255\lithoclase.ini	Quotation.exe
File opened for modification	C:\Program Files (x86)\Common Files\brisantgranatens\baegersvamp.For	Quotation.exe

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 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	Quotation.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quotation.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2744	Quotation.exe
2744	Quotation.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1876	Quotation.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2744	Quotation.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1876 wrote to memory of 2744	1876	Quotation.exe	30
PID 1876 wrote to memory of 2744	1876	Quotation.exe	30
PID 1876 wrote to memory of 2744	1876	Quotation.exe	30
PID 1876 wrote to memory of 2744	1876	Quotation.exe	30
PID 1876 wrote to memory of 2744	1876	Quotation.exe	30
PID 1876 wrote to memory of 2744	1876	Quotation.exe	30

C:\Users\Admin\AppData\Local\Temp\Quotation.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1876
- C:\Users\Admin\AppData\Local\Temp\Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2744

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

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nseFC8A.tmp\System.dll

Filesize
12KB

MD5
d6f54d2cefdf58836805796f55bfc846

SHA1
b980addc1a755b968dd5799179d3b4f1c2de9d2d

SHA256
f917aef484d1fbb4d723b2e2d3045cb6f5f664e61fbb3d5c577bd1c215de55d9

SHA512
ce67da936a93d46ef7e81abc8276787c82fd844c03630ba18afc3528c7e420c3228bfe82aeda083bb719f2d1314afae913362abd1e220cb364606519690d45db

Download Submit
memory/1876-16-0x0000000003CA0000-0x0000000006BFE000-memory.dmp

Filesize
47.4MB

Download
memory/1876-17-0x0000000077631000-0x0000000077732000-memory.dmp

Filesize
1.0MB

Download
memory/1876-18-0x0000000077630000-0x00000000777D9000-memory.dmp

Filesize
1.7MB

Download
memory/1876-19-0x0000000077820000-0x00000000778F6000-memory.dmp

Filesize
856KB

Download
memory/1876-20-0x0000000003CA0000-0x0000000006BFE000-memory.dmp

Filesize
47.4MB

Download
memory/2744-21-0x0000000077630000-0x00000000777D9000-memory.dmp

Filesize
1.7MB

Download
memory/2744-28-0x0000000000820000-0x0000000001882000-memory.dmp

Filesize
16.4MB

Download
memory/2744-45-0x0000000000820000-0x0000000001882000-memory.dmp

Filesize
16.4MB

Download
memory/2744-46-0x0000000000820000-0x0000000000860000-memory.dmp

Filesize
256KB

Download

Analysis

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