agenttesla | 93d4a1c73f73cfabff4180c6b5ce9991b3cb41783440f29dc5745961741eefe7

General

Target

stage5.bin.exe
Size

979KB
MD5

2acd19884dc08535b643868f682b3c84
SHA1

c3577aea750eae81c5ea828633cd523f28979b26
SHA256

93d4a1c73f73cfabff4180c6b5ce9991b3cb41783440f29dc5745961741eefe7
SHA512

7d0565d00795f9f6f37cf7a3a65f1c3be1ca4ae2249c67617d2bb31c8b820b593b3e1d96ea173aa4ffd8d72a569c3432ae3f9f80c799f53049d966e570dc0dc8
SSDEEP

24576:d4PpyeFskkfO+Ucf/eHAzoAgWdFMkLUvHW7kX3Lu4:ZpHwMegXnzLy27kru

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.mewa.or.ke
Port:
587
Username:
[email protected]
Password:
pharmacy@2017
Email To:
[email protected]

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

stage5.bin.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation	stage5.bin.exe

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

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 stealer

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 stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

stage5.bin.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	stage5.bin.exe
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	stage5.bin.exe
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	stage5.bin.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

22 api.ipify.org
21 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

stage5.bin.exe

description pid process target process

PID 3288 set thread context of 4000 3288 stage5.bin.exe stage5.bin.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

4580 schtasks.exe
Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

stage5.bin.exepowershell.exe

pid process

3288 stage5.bin.exe
3288 stage5.bin.exe
3288 stage5.bin.exe
3288 stage5.bin.exe
3288 stage5.bin.exe
3588 powershell.exe
3588 powershell.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

stage5.bin.exestage5.bin.exepowershell.exe

description pid process

Token: SeDebugPrivilege 3288 stage5.bin.exe
Token: SeDebugPrivilege 4000 stage5.bin.exe
Token: SeDebugPrivilege 3588 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

stage5.bin.exe

pid process

4000 stage5.bin.exe

flow	ioc
22	api.ipify.org
21	api.ipify.org

description	pid	process	target process
PID 3288 set thread context of 4000	3288	stage5.bin.exe	stage5.bin.exe

pid	process
4580	schtasks.exe

pid	process
3288	stage5.bin.exe
3288	stage5.bin.exe
3288	stage5.bin.exe
3288	stage5.bin.exe
3288	stage5.bin.exe
3588	powershell.exe
3588	powershell.exe

description	pid	process
Token: SeDebugPrivilege	3288	stage5.bin.exe
Token: SeDebugPrivilege	4000	stage5.bin.exe
Token: SeDebugPrivilege	3588	powershell.exe

pid	process
4000	stage5.bin.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

stage5.bin.exe

description	pid	process	target process
PID 3288 wrote to memory of 3588	3288	stage5.bin.exe	powershell.exe
PID 3288 wrote to memory of 3588	3288	stage5.bin.exe	powershell.exe
PID 3288 wrote to memory of 3588	3288	stage5.bin.exe	powershell.exe
PID 3288 wrote to memory of 4580	3288	stage5.bin.exe	schtasks.exe
PID 3288 wrote to memory of 4580	3288	stage5.bin.exe	schtasks.exe
PID 3288 wrote to memory of 4580	3288	stage5.bin.exe	schtasks.exe
PID 3288 wrote to memory of 4000	3288	stage5.bin.exe	stage5.bin.exe
PID 3288 wrote to memory of 4000	3288	stage5.bin.exe	stage5.bin.exe
PID 3288 wrote to memory of 4000	3288	stage5.bin.exe	stage5.bin.exe
PID 3288 wrote to memory of 4000	3288	stage5.bin.exe	stage5.bin.exe
PID 3288 wrote to memory of 4000	3288	stage5.bin.exe	stage5.bin.exe
PID 3288 wrote to memory of 4000	3288	stage5.bin.exe	stage5.bin.exe
PID 3288 wrote to memory of 4000	3288	stage5.bin.exe	stage5.bin.exe
PID 3288 wrote to memory of 4000	3288	stage5.bin.exe	stage5.bin.exe

outlook_office_path 1 IoCs

Processes:

stage5.bin.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	stage5.bin.exe

outlook_win_path 1 IoCs

Processes:

stage5.bin.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	stage5.bin.exe

C:\Users\Admin\AppData\Local\Temp\stage5.bin.exe
"C:\Users\Admin\AppData\Local\Temp\stage5.bin.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3288
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\WTbArTbDXsm.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3588
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WTbArTbDXsm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4E9D.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4580
- C:\Users\Admin\AppData\Local\Temp\stage5.bin.exe
  "C:\Users\Admin\AppData\Local\Temp\stage5.bin.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:4000

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_u2x2tobz.qhj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp4E9D.tmp

Filesize
1KB

MD5
851412238f18b2a640acfe6bba5da67f

SHA1
e1aea52b939ea1d88d1c82776a2bb02396a014f1

SHA256
693960c2a9b0773b362126156c696579f034f63a38c7f23cfecc981af597be0d

SHA512
abed9ed4d8f389f91ac7aaf38caacc0728f5335045c40948f4d2d70e0546be7221c21738d2363e6ed924a6b5db2a7146a0742edae61f7a16c2be8f37f22aee48

Download Submit
memory/3288-134-0x0000000005290000-0x0000000005834000-memory.dmp

Filesize
5.6MB

Download
memory/3288-135-0x0000000004CE0000-0x0000000004D72000-memory.dmp

Filesize
584KB

Download
memory/3288-136-0x0000000004CA0000-0x0000000004CB0000-memory.dmp

Filesize
64KB

Download
memory/3288-137-0x0000000004E80000-0x0000000004E8A000-memory.dmp

Filesize
40KB

Download
memory/3288-138-0x0000000004CA0000-0x0000000004CB0000-memory.dmp

Filesize
64KB

Download
memory/3288-139-0x0000000007CE0000-0x0000000007D7C000-memory.dmp

Filesize
624KB

Download
memory/3288-133-0x0000000000230000-0x000000000032C000-memory.dmp

Filesize
1008KB

Download
memory/3588-153-0x00000000056F0000-0x0000000005756000-memory.dmp

Filesize
408KB

Download
memory/3588-177-0x0000000000C10000-0x0000000000C20000-memory.dmp

Filesize
64KB

Download
memory/3588-148-0x0000000000C10000-0x0000000000C20000-memory.dmp

Filesize
64KB

Download
memory/3588-149-0x0000000000C10000-0x0000000000C20000-memory.dmp

Filesize
64KB

Download
memory/3588-187-0x00000000073F0000-0x00000000073F8000-memory.dmp

Filesize
32KB

Download
memory/3588-152-0x0000000004E00000-0x0000000004E22000-memory.dmp

Filesize
136KB

Download
memory/3588-146-0x0000000004F10000-0x0000000005538000-memory.dmp

Filesize
6.2MB

Download
memory/3588-144-0x00000000024A0000-0x00000000024D6000-memory.dmp

Filesize
216KB

Download
memory/3588-163-0x0000000005DC0000-0x0000000005DDE000-memory.dmp

Filesize
120KB

Download
memory/3588-186-0x0000000007410000-0x000000000742A000-memory.dmp

Filesize
104KB

Download
memory/3588-165-0x0000000006D70000-0x0000000006DA2000-memory.dmp

Filesize
200KB

Download
memory/3588-166-0x0000000070630000-0x000000007067C000-memory.dmp

Filesize
304KB

Download
memory/3588-176-0x0000000006370000-0x000000000638E000-memory.dmp

Filesize
120KB

Download
memory/3588-185-0x0000000007300000-0x000000000730E000-memory.dmp

Filesize
56KB

Download
memory/3588-178-0x000000007F700000-0x000000007F710000-memory.dmp

Filesize
64KB

Download
memory/3588-179-0x0000000007700000-0x0000000007D7A000-memory.dmp

Filesize
6.5MB

Download
memory/3588-180-0x00000000070C0000-0x00000000070DA000-memory.dmp

Filesize
104KB

Download
memory/3588-181-0x0000000007140000-0x000000000714A000-memory.dmp

Filesize
40KB

Download
memory/3588-182-0x0000000007350000-0x00000000073E6000-memory.dmp

Filesize
600KB

Download
memory/4000-183-0x0000000007100000-0x0000000007150000-memory.dmp

Filesize
320KB

Download
memory/4000-184-0x0000000007320000-0x00000000074E2000-memory.dmp

Filesize
1.8MB

Download
memory/4000-147-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/4000-164-0x0000000005580000-0x0000000005590000-memory.dmp

Filesize
64KB

Download
memory/4000-151-0x0000000005400000-0x0000000005466000-memory.dmp

Filesize
408KB

Download
memory/4000-190-0x0000000005580000-0x0000000005590000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads