agenttesla | eaff959136dcb8dbb2db3429ac0ed3efe5263d99abacd5bbb05ba0f36495683c

General

Target

33781d32bd85d61f542cb3167631fb39.exe
Size

973KB
MD5

33781d32bd85d61f542cb3167631fb39
SHA1

4b6acb5995cdef60998ce98d1b1a65dff3152327
SHA256

eaff959136dcb8dbb2db3429ac0ed3efe5263d99abacd5bbb05ba0f36495683c
SHA512

c7c4727a64ba2a1f85fff4801278301c0346727d312b3b29461d96c84c12dcc9f4d9bab2a93118c576ebcbd00718ad514d2321f47a71a72851378869ccdef6e8

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.naijajob.net
Port:
587
Username:
info@naijajob.net
Password:
r]n~Q6,I5hnQ

Signatures

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

AgentTesla Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4092-14-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/4092-15-0x000000000043760E-mapping.dmp	family_agenttesla

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

33781d32bd85d61f542cb3167631fb39.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\vmhqWYS = "C:\\Users\\Admin\\AppData\\Local\\Temp\\vmhqWYS\\vmhqWYS.exe"	33781d32bd85d61f542cb3167631fb39.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

15 api.ipify.org
16 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

33781d32bd85d61f542cb3167631fb39.exe

description pid process target process

PID 4728 set thread context of 4092 4728 33781d32bd85d61f542cb3167631fb39.exe 33781d32bd85d61f542cb3167631fb39.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

3508 schtasks.exe

flow	ioc
15	api.ipify.org
16	api.ipify.org

description	pid	process	target process
PID 4728 set thread context of 4092	4728	33781d32bd85d61f542cb3167631fb39.exe	33781d32bd85d61f542cb3167631fb39.exe

pid	process
3508	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

33781d32bd85d61f542cb3167631fb39.exe33781d32bd85d61f542cb3167631fb39.exe

pid	process
4728	33781d32bd85d61f542cb3167631fb39.exe
4728	33781d32bd85d61f542cb3167631fb39.exe
4728	33781d32bd85d61f542cb3167631fb39.exe
4092	33781d32bd85d61f542cb3167631fb39.exe
4092	33781d32bd85d61f542cb3167631fb39.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

33781d32bd85d61f542cb3167631fb39.exe33781d32bd85d61f542cb3167631fb39.exe

description pid process

Token: SeDebugPrivilege 4728 33781d32bd85d61f542cb3167631fb39.exe
Token: SeDebugPrivilege 4092 33781d32bd85d61f542cb3167631fb39.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

33781d32bd85d61f542cb3167631fb39.exe

pid process

4092 33781d32bd85d61f542cb3167631fb39.exe

description	pid	process
Token: SeDebugPrivilege	4728	33781d32bd85d61f542cb3167631fb39.exe
Token: SeDebugPrivilege	4092	33781d32bd85d61f542cb3167631fb39.exe

pid	process
4092	33781d32bd85d61f542cb3167631fb39.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

33781d32bd85d61f542cb3167631fb39.exe

description	pid	process	target process
PID 4728 wrote to memory of 3508	4728	33781d32bd85d61f542cb3167631fb39.exe	schtasks.exe
PID 4728 wrote to memory of 3508	4728	33781d32bd85d61f542cb3167631fb39.exe	schtasks.exe
PID 4728 wrote to memory of 3508	4728	33781d32bd85d61f542cb3167631fb39.exe	schtasks.exe
PID 4728 wrote to memory of 4076	4728	33781d32bd85d61f542cb3167631fb39.exe	33781d32bd85d61f542cb3167631fb39.exe
PID 4728 wrote to memory of 4076	4728	33781d32bd85d61f542cb3167631fb39.exe	33781d32bd85d61f542cb3167631fb39.exe
PID 4728 wrote to memory of 4076	4728	33781d32bd85d61f542cb3167631fb39.exe	33781d32bd85d61f542cb3167631fb39.exe
PID 4728 wrote to memory of 4092	4728	33781d32bd85d61f542cb3167631fb39.exe	33781d32bd85d61f542cb3167631fb39.exe
PID 4728 wrote to memory of 4092	4728	33781d32bd85d61f542cb3167631fb39.exe	33781d32bd85d61f542cb3167631fb39.exe
PID 4728 wrote to memory of 4092	4728	33781d32bd85d61f542cb3167631fb39.exe	33781d32bd85d61f542cb3167631fb39.exe
PID 4728 wrote to memory of 4092	4728	33781d32bd85d61f542cb3167631fb39.exe	33781d32bd85d61f542cb3167631fb39.exe
PID 4728 wrote to memory of 4092	4728	33781d32bd85d61f542cb3167631fb39.exe	33781d32bd85d61f542cb3167631fb39.exe
PID 4728 wrote to memory of 4092	4728	33781d32bd85d61f542cb3167631fb39.exe	33781d32bd85d61f542cb3167631fb39.exe
PID 4728 wrote to memory of 4092	4728	33781d32bd85d61f542cb3167631fb39.exe	33781d32bd85d61f542cb3167631fb39.exe
PID 4728 wrote to memory of 4092	4728	33781d32bd85d61f542cb3167631fb39.exe	33781d32bd85d61f542cb3167631fb39.exe

C:\Users\Admin\AppData\Local\Temp\33781d32bd85d61f542cb3167631fb39.exe
"C:\Users\Admin\AppData\Local\Temp\33781d32bd85d61f542cb3167631fb39.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4728

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UnffYKzTd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBDA8.tmp"
2⤵
- Creates scheduled task(s)
PID:3508

C:\Users\Admin\AppData\Local\Temp\33781d32bd85d61f542cb3167631fb39.exe
"{path}"
2⤵
PID:4076

C:\Users\Admin\AppData\Local\Temp\33781d32bd85d61f542cb3167631fb39.exe
"{path}"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4092

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpBDA8.tmp
MD5
1f8a9ee3da6d699b530362ea2e2bcaac

SHA1
e013110972ac12d3370ce164cdb4e35a6ef30eb8

SHA256
a2a38189e847582846836789b1d6f2e1be9d552d97ad67df37ca09c7f90e38b0

SHA512
96411b8e59f2b01172e2f76635a77133aecfd257988a14afb21c66f833364a42c0c0c828f89ba633118c3caee0a0b8384244b8388849f291480ab75c0018a41b

Download Submit
memory/3508-12-0x0000000000000000-mapping.dmp

Download
memory/4092-26-0x0000000005651000-0x0000000005652000-memory.dmp

Filesize
4KB

Download
memory/4092-23-0x00000000060C0000-0x00000000060C1000-memory.dmp

Filesize
4KB

Download
memory/4092-22-0x0000000005600000-0x0000000005601000-memory.dmp

Filesize
4KB

Download
memory/4092-20-0x0000000005650000-0x0000000005651000-memory.dmp

Filesize
4KB

Download
memory/4092-16-0x0000000073530000-0x0000000073C1E000-memory.dmp

Filesize
6.9MB

Download
memory/4092-15-0x000000000043760E-mapping.dmp

Download
memory/4092-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4728-7-0x0000000004F90000-0x0000000004F91000-memory.dmp

Filesize
4KB

Download
memory/4728-11-0x0000000007410000-0x0000000007411000-memory.dmp

Filesize
4KB

Download
memory/4728-10-0x0000000006D20000-0x0000000006D76000-memory.dmp

Filesize
344KB

Download
memory/4728-9-0x00000000051B0000-0x00000000051BE000-memory.dmp

Filesize
56KB

Download
memory/4728-8-0x0000000004FA0000-0x0000000004FA1000-memory.dmp

Filesize
4KB

Download
memory/4728-2-0x0000000073530000-0x0000000073C1E000-memory.dmp

Filesize
6.9MB

Download
memory/4728-6-0x0000000004FB0000-0x0000000004FB1000-memory.dmp

Filesize
4KB

Download
memory/4728-5-0x0000000005410000-0x0000000005411000-memory.dmp

Filesize
4KB

Download
memory/4728-3-0x0000000000650000-0x0000000000651000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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