agenttesla | 110d2992ff818e33d57b33a3c502bade99099583d0e3e64c6fbe0f92822384bd

General

Target

Bulk Order - 1017C.exe
Size

503KB
MD5

1891f15519993e34b9970b145d5611a1
SHA1

f480a6cc3bb5b4d1de71fbe178f564b44a50f3c6
SHA256

110d2992ff818e33d57b33a3c502bade99099583d0e3e64c6fbe0f92822384bd
SHA512

035b21affbb7f656172974075f6571218ea9e5b884ca5db018c272184271da0d75d057068468060003b3ff45329c8bd524ac06e1a0d4d82949498151fee34829

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.lockitsolutions.co.ke
Port:
587
Username:
info@lockitsolutions.co.ke
Password:
v5EiMp)41RR_

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/4040-12-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/4040-13-0x000000000043764E-mapping.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

Bulk Order - 1017C.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts Bulk Order - 1017C.exe
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

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	Bulk Order - 1017C.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Bulk Order - 1017C.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe"	Bulk Order - 1017C.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:

Bulk Order - 1017C.exe

description pid process target process

PID 3932 set thread context of 4040 3932 Bulk Order - 1017C.exe Bulk Order - 1017C.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

2440 schtasks.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

Bulk Order - 1017C.exeBulk Order - 1017C.exe

pid process

3932 Bulk Order - 1017C.exe
3932 Bulk Order - 1017C.exe
3932 Bulk Order - 1017C.exe
4040 Bulk Order - 1017C.exe
4040 Bulk Order - 1017C.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Bulk Order - 1017C.exeBulk Order - 1017C.exe

description pid process

Token: SeDebugPrivilege 3932 Bulk Order - 1017C.exe
Token: SeDebugPrivilege 4040 Bulk Order - 1017C.exe

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

description	pid	process	target process
PID 3932 set thread context of 4040	3932	Bulk Order - 1017C.exe	Bulk Order - 1017C.exe

pid	process
2440	schtasks.exe

pid	process
3932	Bulk Order - 1017C.exe
3932	Bulk Order - 1017C.exe
3932	Bulk Order - 1017C.exe
4040	Bulk Order - 1017C.exe
4040	Bulk Order - 1017C.exe

description	pid	process
Token: SeDebugPrivilege	3932	Bulk Order - 1017C.exe
Token: SeDebugPrivilege	4040	Bulk Order - 1017C.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

Bulk Order - 1017C.exe

description	pid	process	target process
PID 3932 wrote to memory of 2440	3932	Bulk Order - 1017C.exe	schtasks.exe
PID 3932 wrote to memory of 2440	3932	Bulk Order - 1017C.exe	schtasks.exe
PID 3932 wrote to memory of 2440	3932	Bulk Order - 1017C.exe	schtasks.exe
PID 3932 wrote to memory of 1328	3932	Bulk Order - 1017C.exe	Bulk Order - 1017C.exe
PID 3932 wrote to memory of 1328	3932	Bulk Order - 1017C.exe	Bulk Order - 1017C.exe
PID 3932 wrote to memory of 1328	3932	Bulk Order - 1017C.exe	Bulk Order - 1017C.exe
PID 3932 wrote to memory of 4040	3932	Bulk Order - 1017C.exe	Bulk Order - 1017C.exe
PID 3932 wrote to memory of 4040	3932	Bulk Order - 1017C.exe	Bulk Order - 1017C.exe
PID 3932 wrote to memory of 4040	3932	Bulk Order - 1017C.exe	Bulk Order - 1017C.exe
PID 3932 wrote to memory of 4040	3932	Bulk Order - 1017C.exe	Bulk Order - 1017C.exe
PID 3932 wrote to memory of 4040	3932	Bulk Order - 1017C.exe	Bulk Order - 1017C.exe
PID 3932 wrote to memory of 4040	3932	Bulk Order - 1017C.exe	Bulk Order - 1017C.exe
PID 3932 wrote to memory of 4040	3932	Bulk Order - 1017C.exe	Bulk Order - 1017C.exe
PID 3932 wrote to memory of 4040	3932	Bulk Order - 1017C.exe	Bulk Order - 1017C.exe

C:\Users\Admin\AppData\Local\Temp\Bulk Order - 1017C.exe
"C:\Users\Admin\AppData\Local\Temp\Bulk Order - 1017C.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3932

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kFukIXyf" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD382.tmp"
2⤵
- Creates scheduled task(s)
PID:2440

C:\Users\Admin\AppData\Local\Temp\Bulk Order - 1017C.exe
"{path}"
2⤵
PID:1328

C:\Users\Admin\AppData\Local\Temp\Bulk Order - 1017C.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4040

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\Microsoft\CLR_v4.0_32\UsageLogs\Bulk Order - 1017C.exe.log
MD5
3fed8d1dd11972a6e2603bb2d73a3ee5

SHA1
7ecb7f64ade7b91c5815da647e84167c3d95afb4

SHA256
eecf6c0575dc995a485d46a5daaa66f58229e552f16782d873834d218ab17551

SHA512
ca6059eb67f800cc666d5146d24070abf5ee08209f8f9d1668a0ca2201eb3f6fa013c2d807b09925e12b82c37686980fcc26a6a5e4a5ba129c4b2a585961d3bb

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpD382.tmp
MD5
2662031b12a1888858c806e5db6686fb

SHA1
cff9307f8e2f920811deb4681704db8e677d2d4e

SHA256
6d633e0b75b93df3f687dcd9a7036d463096bda29d4c5d41f4138f3bed6346eb

SHA512
95c8e1020644c3623d7e19d3bb85046ad672ed372015bf495dfa2e213aadb6b64f07b475366323f4ec2b5cdeae67d0840f956a56cea019de79a415fbb97b4d59

Download Submit
memory/2440-10-0x0000000000000000-mapping.dmp

Download
memory/3932-9-0x0000000008DA0000-0x0000000008E01000-memory.dmp

Filesize
388KB

Download
memory/3932-3-0x0000000005980000-0x0000000005981000-memory.dmp

Filesize
4KB

Download
memory/3932-6-0x0000000008E50000-0x0000000008E51000-memory.dmp

Filesize
4KB

Download
memory/3932-7-0x0000000007570000-0x0000000007584000-memory.dmp

Filesize
80KB

Download
memory/3932-8-0x0000000007630000-0x0000000007631000-memory.dmp

Filesize
4KB

Download
memory/3932-0-0x0000000073300000-0x00000000739EE000-memory.dmp

Filesize
6.9MB

Download
memory/3932-4-0x0000000005520000-0x0000000005521000-memory.dmp

Filesize
4KB

Download
memory/3932-5-0x00000000054D0000-0x00000000054D1000-memory.dmp

Filesize
4KB

Download
memory/3932-1-0x0000000000C00000-0x0000000000C01000-memory.dmp

Filesize
4KB

Download
memory/4040-13-0x000000000043764E-mapping.dmp

Download
memory/4040-12-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4040-15-0x0000000073300000-0x00000000739EE000-memory.dmp

Filesize
6.9MB

Download
memory/4040-20-0x0000000004ED0000-0x0000000004ED1000-memory.dmp

Filesize
4KB

Download
memory/4040-21-0x0000000005240000-0x0000000005241000-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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