agenttesla | b8a0b0d234e61f39fcd34774f35a33f17e6e8f0ee1a1a318758a17d4cfb6dc32

General

Target

tmpz0afr5u4.exe
Size

612KB
MD5

fc981bf5843063b93311c756824ee5eb
SHA1

a06472abc448049b0919fdcc18a6cf4e2f456ddc
SHA256

b8a0b0d234e61f39fcd34774f35a33f17e6e8f0ee1a1a318758a17d4cfb6dc32
SHA512

05c7d3949f47f5443269a61d6e559a4fc99d85791b79e082cd8206247cd721bf8d204cc61967facaa69dc0b0f367a44929b65c310d26355f12a1c34b5a27ce91
SSDEEP

12288:owFWlm+ReVDr10PWC1vUl1zA6pTdaHSHVzMRtlzWLG8Xu:ow4lVMVV0PDMl10goHGYzC+

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.rediffrnail.com
Port:
587
Username:
[email protected]
Password:
%wWJeDZ6
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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	tmpz0afr5u4.exe

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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmpz0afr5u4.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmpz0afr5u4.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmpz0afr5u4.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.

flow	ioc
31	api.ipify.org
32	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2128 set thread context of 3000	2128	tmpz0afr5u4.exe	95

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4748	powershell.exe
4748	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3000	tmpz0afr5u4.exe
Token: SeDebugPrivilege	4748	powershell.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 4748	2128	tmpz0afr5u4.exe	93
PID 2128 wrote to memory of 4748	2128	tmpz0afr5u4.exe	93
PID 2128 wrote to memory of 4748	2128	tmpz0afr5u4.exe	93
PID 2128 wrote to memory of 3000	2128	tmpz0afr5u4.exe	95
PID 2128 wrote to memory of 3000	2128	tmpz0afr5u4.exe	95
PID 2128 wrote to memory of 3000	2128	tmpz0afr5u4.exe	95
PID 2128 wrote to memory of 3000	2128	tmpz0afr5u4.exe	95
PID 2128 wrote to memory of 3000	2128	tmpz0afr5u4.exe	95
PID 2128 wrote to memory of 3000	2128	tmpz0afr5u4.exe	95
PID 2128 wrote to memory of 3000	2128	tmpz0afr5u4.exe	95
PID 2128 wrote to memory of 3000	2128	tmpz0afr5u4.exe	95

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmpz0afr5u4.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmpz0afr5u4.exe

C:\Users\Admin\AppData\Local\Temp\tmpz0afr5u4.exe
"C:\Users\Admin\AppData\Local\Temp\tmpz0afr5u4.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\tmpz0afr5u4.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4748
- C:\Users\Admin\AppData\Local\Temp\tmpz0afr5u4.exe
  "C:\Users\Admin\AppData\Local\Temp\tmpz0afr5u4.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3000

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

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_wiuaoh11.jtd.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2128-139-0x0000000005260000-0x0000000005270000-memory.dmp

Filesize
64KB

Download
memory/2128-135-0x0000000005930000-0x0000000005ED4000-memory.dmp

Filesize
5.6MB

Download
memory/2128-136-0x0000000005490000-0x0000000005522000-memory.dmp

Filesize
584KB

Download
memory/2128-137-0x0000000005260000-0x0000000005270000-memory.dmp

Filesize
64KB

Download
memory/2128-138-0x00000000082A0000-0x000000000833C000-memory.dmp

Filesize
624KB

Download
memory/2128-133-0x0000000000890000-0x0000000000930000-memory.dmp

Filesize
640KB

Download
memory/2128-134-0x0000000005260000-0x0000000005270000-memory.dmp

Filesize
64KB

Download
memory/3000-157-0x00000000059C0000-0x00000000059D0000-memory.dmp

Filesize
64KB

Download
memory/3000-140-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/3000-143-0x0000000005610000-0x0000000005676000-memory.dmp

Filesize
408KB

Download
memory/3000-185-0x00000000059C0000-0x00000000059D0000-memory.dmp

Filesize
64KB

Download
memory/3000-178-0x00000000072D0000-0x0000000007320000-memory.dmp

Filesize
320KB

Download
memory/3000-174-0x0000000007010000-0x000000000701A000-memory.dmp

Filesize
40KB

Download
memory/4748-142-0x0000000002350000-0x0000000002386000-memory.dmp

Filesize
216KB

Download
memory/4748-151-0x0000000005590000-0x00000000055F6000-memory.dmp

Filesize
408KB

Download
memory/4748-152-0x0000000002390000-0x00000000023A0000-memory.dmp

Filesize
64KB

Download
memory/4748-159-0x0000000005C70000-0x0000000005C8E000-memory.dmp

Filesize
120KB

Download
memory/4748-160-0x0000000002390000-0x00000000023A0000-memory.dmp

Filesize
64KB

Download
memory/4748-161-0x0000000006250000-0x0000000006282000-memory.dmp

Filesize
200KB

Download
memory/4748-162-0x00000000712D0000-0x000000007131C000-memory.dmp

Filesize
304KB

Download
memory/4748-165-0x000000007F070000-0x000000007F080000-memory.dmp

Filesize
64KB

Download
memory/4748-173-0x0000000006230000-0x000000000624E000-memory.dmp

Filesize
120KB

Download
memory/4748-158-0x0000000002390000-0x00000000023A0000-memory.dmp

Filesize
64KB

Download
memory/4748-175-0x00000000075D0000-0x0000000007C4A000-memory.dmp

Filesize
6.5MB

Download
memory/4748-176-0x0000000006F80000-0x0000000006F9A000-memory.dmp

Filesize
104KB

Download
memory/4748-177-0x0000000006FF0000-0x0000000006FFA000-memory.dmp

Filesize
40KB

Download
memory/4748-145-0x00000000054F0000-0x0000000005512000-memory.dmp

Filesize
136KB

Download
memory/4748-179-0x0000000007200000-0x0000000007296000-memory.dmp

Filesize
600KB

Download
memory/4748-180-0x00000000071B0000-0x00000000071BE000-memory.dmp

Filesize
56KB

Download
memory/4748-181-0x00000000072C0000-0x00000000072DA000-memory.dmp

Filesize
104KB

Download
memory/4748-182-0x00000000072A0000-0x00000000072A8000-memory.dmp

Filesize
32KB

Download
memory/4748-144-0x0000000004D50000-0x0000000005378000-memory.dmp

Filesize
6.2MB

Download

Analysis

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