agenttesla | d056da5721cc045e4416722d34e460403271865a14d0ab042a3d2224a188851a

Analysis

max time kernel
136s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2023 07:16

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General

Target

Transferenciarecibo.exe
Size

448KB
MD5

e7b62be8090ec0dc64e35039c97173da
SHA1

914f33cabb3fc5bfcdb09493bd4fc7aeef4c2637
SHA256

d056da5721cc045e4416722d34e460403271865a14d0ab042a3d2224a188851a
SHA512

ebb8c7b1d0d94433b29baaa2515d02829dda68dc8d36c4c0dcf069c653c1d61a3918673537825be2c6047ca5219663fd8ebf47f60be595ea8c654966c15555c7
SSDEEP

6144:/hRUeCcWlHD12IhuTW/HkdHLQYJotlrvMyMp6een79Z4ivUNDwof+nT:5QcWlh5yW89Zatl7Omn5Z1vUSoc

Score

10^/10

agenttesla discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.gamasof.com
Port:
587
Username:
[email protected]
Password:
Mariana2020*
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

Checks QEMU agent file 2 TTPs 2 IoCs

Checks presence of QEMU agent, possibly to detect virtualization.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	caspol.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	Transferenciarecibo.exe

Loads dropped DLL 1 IoCs

pid	Process
4324	Transferenciarecibo.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\newapp = "C:\\Users\\Admin\\AppData\\Roaming\\newapp\\newapp.exe"	caspol.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

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
51	api.ipify.org
52	api.ipify.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
3908	caspol.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4324	Transferenciarecibo.exe
3908	caspol.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4324 set thread context of 3908	4324	Transferenciarecibo.exe	89

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
3244	3908	WerFault.exe	89

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3908	caspol.exe
3908	caspol.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4324	Transferenciarecibo.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3908	caspol.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4324 wrote to memory of 3908	4324	Transferenciarecibo.exe	89
PID 4324 wrote to memory of 3908	4324	Transferenciarecibo.exe	89
PID 4324 wrote to memory of 3908	4324	Transferenciarecibo.exe	89
PID 4324 wrote to memory of 3908	4324	Transferenciarecibo.exe	89

C:\Users\Admin\AppData\Local\Temp\Transferenciarecibo.exe
"C:\Users\Admin\AppData\Local\Temp\Transferenciarecibo.exe"
1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4324
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe
  "C:\Users\Admin\AppData\Local\Temp\Transferenciarecibo.exe"
  2⤵
  - Checks QEMU agent file
  - Adds Run key to start application
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3908
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3908 -s 2604
    3⤵
    - Program crash
    PID:3244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 3908 -ip 3908
1⤵
PID:4196

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Web Service

T1102

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsc740E.tmp\System.dll

Filesize
11KB

MD5
c9473cb90d79a374b2ba6040ca16e45c

SHA1
ab95b54f12796dce57210d65f05124a6ed81234a

SHA256
b80a5cba69d1853ed5979b0ca0352437bf368a5cfb86cb4528edadd410e11352

SHA512
eafe7d5894622bc21f663bca4dd594392ee0f5b29270b6b56b0187093d6a3a103545464ff6398ad32d2cf15dab79b1f133218ba9ba337ddc01330b5ada804d7b

Download Submit
memory/3908-152-0x0000000000400000-0x000000000062B000-memory.dmp

Filesize
2.2MB

Download
memory/3908-153-0x0000000000C30000-0x00000000053F8000-memory.dmp

Filesize
71.8MB

Download
memory/3908-154-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/3908-155-0x00000000389E0000-0x0000000038F84000-memory.dmp

Filesize
5.6MB

Download
memory/3908-156-0x00000000385C0000-0x00000000385D0000-memory.dmp

Filesize
64KB

Download
memory/3908-157-0x0000000000990000-0x00000000009F6000-memory.dmp

Filesize
408KB

Download
memory/3908-161-0x0000000000C30000-0x00000000053F8000-memory.dmp

Filesize
71.8MB

Download