agenttesla | c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0

General

Target

c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.exe
Size

928KB
MD5

298b620e6265cb18f9c62e547bf0f71e
SHA1

db38f716369fc629661b139cc4f8ebe837d0f372
SHA256

c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0
SHA512

9eafa7187d026a60d253a542f4214994da380105d7ece9af6f2c71b27c6d95d24754e8ef43df95e54208563d1c3fffc1005b577b6390fa9892d2b4339ab205eb

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Signatures

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

AgentTesla Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4332-145-0x00000000020C0000-0x0000000002146000-memory.dmp	family_agenttesla

Executes dropped EXE 1 IoCs

pid	Process
220	thunder.exe

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-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.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 6 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	thunder.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	thunder.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	thunder.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
28	ifconfig.me

Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs

pid	Process
4832	c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.exe
4332	c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.exe
4332	c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4832 set thread context of 4332	4832	c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.exe	79

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4332	c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.exe
4332	c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.exe
220	thunder.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4332	c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.exe
Token: SeDebugPrivilege	220	thunder.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4832	c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4832 wrote to memory of 4332	4832	c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.exe	79
PID 4832 wrote to memory of 4332	4832	c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.exe	79
PID 4832 wrote to memory of 4332	4832	c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.exe	79
PID 4332 wrote to memory of 220	4332	c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.exe	87
PID 4332 wrote to memory of 220	4332	c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.exe	87
PID 4332 wrote to memory of 220	4332	c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.exe	87

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	thunder.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	thunder.exe

C:\Users\Admin\AppData\Local\Temp\c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.exe
"C:\Users\Admin\AppData\Local\Temp\c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4832
- C:\Users\Admin\AppData\Local\Temp\c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.exe
  "C:\Users\Admin\AppData\Local\Temp\c64c8fd1caa8eb0ff7ff4527dc0fef7d00834e054956b484ecd2f0e9569925f0.exe"
  2⤵
  - Checks computer location settings
  - Accesses Microsoft Outlook profiles
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4332
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\thunder.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\thunder.exe"
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:220

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\thunder.exe

Filesize
116KB

MD5
00dfe8071e7fc574e2c101b2783cd8a4

SHA1
ac074dddf06bf5b7d9edb575f076c3bee2895b8b

SHA256
a6ad705602b4b0b9310f95d83e95c6b2baba6778247460a9e5425826c823a6e0

SHA512
78eb2eda20ff449864d330aec89d7580f489fedde15e81d27b0386f254d06d9a085d1eaf58a62c66dd8ae004efb7d1f30ce3a9d8edf13c3fb5059c37779b42e2

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\thunder.exe

Filesize
116KB

MD5
00dfe8071e7fc574e2c101b2783cd8a4

SHA1
ac074dddf06bf5b7d9edb575f076c3bee2895b8b

SHA256
a6ad705602b4b0b9310f95d83e95c6b2baba6778247460a9e5425826c823a6e0

SHA512
78eb2eda20ff449864d330aec89d7580f489fedde15e81d27b0386f254d06d9a085d1eaf58a62c66dd8ae004efb7d1f30ce3a9d8edf13c3fb5059c37779b42e2

Download Submit
memory/220-162-0x0000000006AF0000-0x0000000006AFA000-memory.dmp

Filesize
40KB

Download
memory/220-161-0x0000000006B20000-0x0000000006BB2000-memory.dmp

Filesize
584KB

Download
memory/220-160-0x0000000006BD0000-0x0000000006D92000-memory.dmp

Filesize
1.8MB

Download
memory/220-159-0x0000000006610000-0x0000000006676000-memory.dmp

Filesize
408KB

Download
memory/220-158-0x0000000005820000-0x00000000058BC000-memory.dmp

Filesize
624KB

Download
memory/220-157-0x0000000005CF0000-0x0000000006294000-memory.dmp

Filesize
5.6MB

Download
memory/220-156-0x0000000000910000-0x0000000000932000-memory.dmp

Filesize
136KB

Download
memory/4332-138-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download
memory/4332-144-0x00000000779A0000-0x0000000077B43000-memory.dmp

Filesize
1.6MB

Download
memory/4332-149-0x0000000000640000-0x000000000064C000-memory.dmp

Filesize
48KB

Download
memory/4332-150-0x00007FFADB610000-0x00007FFADB805000-memory.dmp

Filesize
2.0MB

Download
memory/4332-151-0x00000000779A0000-0x0000000077B43000-memory.dmp

Filesize
1.6MB

Download
memory/4332-152-0x0000000075010000-0x00000000755C1000-memory.dmp

Filesize
5.7MB

Download
memory/4332-145-0x00000000020C0000-0x0000000002146000-memory.dmp

Filesize
536KB

Download
memory/4332-148-0x0000000075010000-0x00000000755C1000-memory.dmp

Filesize
5.7MB

Download
memory/4332-141-0x00007FFADB610000-0x00007FFADB805000-memory.dmp

Filesize
2.0MB

Download
memory/4332-140-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/4832-137-0x00000000779A0000-0x0000000077B43000-memory.dmp

Filesize
1.6MB

Download
memory/4832-136-0x0000000002B60000-0x0000000002B6C000-memory.dmp

Filesize
48KB

Download
memory/4832-132-0x0000000002B60000-0x0000000002B6C000-memory.dmp

Filesize
48KB

Download
memory/4832-134-0x00000000779A0000-0x0000000077B43000-memory.dmp

Filesize
1.6MB

Download
memory/4832-133-0x00007FFADB610000-0x00007FFADB805000-memory.dmp

Filesize
2.0MB

Download

Analysis

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