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 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/912-11-0x000000000043760E-mapping.dmp	family_agenttesla
behavioral1/memory/912-10-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/912-13-0x0000000000400000-0x000000000043C000-memory.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-1-5-21-293278959-2699126792-324916226-1000\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

5 api.ipify.org
6 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

33781d32bd85d61f542cb3167631fb39.exe

description pid process target process

PID 1812 set thread context of 912 1812 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

1624 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

33781d32bd85d61f542cb3167631fb39.exe

pid process

912 33781d32bd85d61f542cb3167631fb39.exe
912 33781d32bd85d61f542cb3167631fb39.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

33781d32bd85d61f542cb3167631fb39.exe

description pid process

Token: SeDebugPrivilege 912 33781d32bd85d61f542cb3167631fb39.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

33781d32bd85d61f542cb3167631fb39.exe

pid process

912 33781d32bd85d61f542cb3167631fb39.exe

flow	ioc
5	api.ipify.org
6	api.ipify.org

description	pid	process	target process
PID 1812 set thread context of 912	1812	33781d32bd85d61f542cb3167631fb39.exe	33781d32bd85d61f542cb3167631fb39.exe

pid	process
1624	schtasks.exe

pid	process
912	33781d32bd85d61f542cb3167631fb39.exe
912	33781d32bd85d61f542cb3167631fb39.exe

description	pid	process
Token: SeDebugPrivilege	912	33781d32bd85d61f542cb3167631fb39.exe

pid	process
912	33781d32bd85d61f542cb3167631fb39.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

33781d32bd85d61f542cb3167631fb39.exe

description	pid	process	target process
PID 1812 wrote to memory of 1624	1812	33781d32bd85d61f542cb3167631fb39.exe	schtasks.exe
PID 1812 wrote to memory of 1624	1812	33781d32bd85d61f542cb3167631fb39.exe	schtasks.exe
PID 1812 wrote to memory of 1624	1812	33781d32bd85d61f542cb3167631fb39.exe	schtasks.exe
PID 1812 wrote to memory of 1624	1812	33781d32bd85d61f542cb3167631fb39.exe	schtasks.exe
PID 1812 wrote to memory of 912	1812	33781d32bd85d61f542cb3167631fb39.exe	33781d32bd85d61f542cb3167631fb39.exe
PID 1812 wrote to memory of 912	1812	33781d32bd85d61f542cb3167631fb39.exe	33781d32bd85d61f542cb3167631fb39.exe
PID 1812 wrote to memory of 912	1812	33781d32bd85d61f542cb3167631fb39.exe	33781d32bd85d61f542cb3167631fb39.exe
PID 1812 wrote to memory of 912	1812	33781d32bd85d61f542cb3167631fb39.exe	33781d32bd85d61f542cb3167631fb39.exe
PID 1812 wrote to memory of 912	1812	33781d32bd85d61f542cb3167631fb39.exe	33781d32bd85d61f542cb3167631fb39.exe
PID 1812 wrote to memory of 912	1812	33781d32bd85d61f542cb3167631fb39.exe	33781d32bd85d61f542cb3167631fb39.exe
PID 1812 wrote to memory of 912	1812	33781d32bd85d61f542cb3167631fb39.exe	33781d32bd85d61f542cb3167631fb39.exe
PID 1812 wrote to memory of 912	1812	33781d32bd85d61f542cb3167631fb39.exe	33781d32bd85d61f542cb3167631fb39.exe
PID 1812 wrote to memory of 912	1812	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 use of WriteProcessMemory
PID:1812

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UnffYKzTd" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1DDD.tmp"
2⤵
- Creates scheduled task(s)
PID:1624

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:912

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp1DDD.tmp
MD5
c82b539b19321e34e93a09c66045bdcb

SHA1
79a768cd388279cc6ce61ef888455826176e8c29

SHA256
7c8edd6c21dd954261f7f7207183cb1ed45b36b3007fcaf6863c822edbc22733

SHA512
1f95a644e3a70da591a55ba3045ff745e62816fa7a739f18207d646054e82814e0e85d2f9bc0b53621ce05ec5ba028e4229bc651ba85d3ab6b074e771f6b41fa

Download Submit
memory/912-12-0x0000000073E00000-0x00000000744EE000-memory.dmp

Filesize
6.9MB

Download
memory/912-11-0x000000000043760E-mapping.dmp

Download
memory/912-10-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/912-13-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/912-15-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/912-16-0x00000000004B1000-0x00000000004B2000-memory.dmp

Filesize
4KB

Download
memory/1624-8-0x0000000000000000-mapping.dmp

Download
memory/1812-5-0x0000000004EB0000-0x0000000004EB1000-memory.dmp

Filesize
4KB

Download
memory/1812-6-0x00000000005B0000-0x00000000005BE000-memory.dmp

Filesize
56KB

Download
memory/1812-7-0x0000000004EF0000-0x0000000004F46000-memory.dmp

Filesize
344KB

Download
memory/1812-3-0x0000000000E90000-0x0000000000E91000-memory.dmp

Filesize
4KB

Download
memory/1812-2-0x0000000073E00000-0x00000000744EE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads