agenttesla | 8c7e7021e23663fc20eaa17a4a601c83922aaf4f4292f327f27a6f77b8fb6009

General

Target

4dde15da019804bd621086db59c34c80_JaffaCakes118.exe
Size

904KB
MD5

4dde15da019804bd621086db59c34c80
SHA1

7335c3d82129641c5b94756cec5c174ef402afe9
SHA256

8c7e7021e23663fc20eaa17a4a601c83922aaf4f4292f327f27a6f77b8fb6009
SHA512

5a39db3d33ad32f641fa28e42ba55f32226294f07babeecc3b35bd7b27ae181be2a07922f246ea7fb4746526a481d0148483533d81210342f8044bc583638675
SSDEEP

12288:6Xb28AjYAX9fhtoHK7z2QOY24b5EA3RLOG4rLsRwER68S0sBRRBGXgVx:mPw1h5KdY24FEJLsSERtlsnG6

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.brimaq.com
Port:
587
Username:
[email protected]
Password:
brimaQ2012
Email To:
[email protected]

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/3684-18-0x0000000000400000-0x000000000043C000-memory.dmp	family_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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	4dde15da019804bd621086db59c34c80_JaffaCakes118.exe

Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4212 set thread context of 3684	4212	4dde15da019804bd621086db59c34c80_JaffaCakes118.exe	103

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4dde15da019804bd621086db59c34c80_JaffaCakes118.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4904	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3684	RegSvcs.exe
3684	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3684	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4212 wrote to memory of 4904	4212	4dde15da019804bd621086db59c34c80_JaffaCakes118.exe	101
PID 4212 wrote to memory of 4904	4212	4dde15da019804bd621086db59c34c80_JaffaCakes118.exe	101
PID 4212 wrote to memory of 4904	4212	4dde15da019804bd621086db59c34c80_JaffaCakes118.exe	101
PID 4212 wrote to memory of 3684	4212	4dde15da019804bd621086db59c34c80_JaffaCakes118.exe	103
PID 4212 wrote to memory of 3684	4212	4dde15da019804bd621086db59c34c80_JaffaCakes118.exe	103
PID 4212 wrote to memory of 3684	4212	4dde15da019804bd621086db59c34c80_JaffaCakes118.exe	103
PID 4212 wrote to memory of 3684	4212	4dde15da019804bd621086db59c34c80_JaffaCakes118.exe	103
PID 4212 wrote to memory of 3684	4212	4dde15da019804bd621086db59c34c80_JaffaCakes118.exe	103
PID 4212 wrote to memory of 3684	4212	4dde15da019804bd621086db59c34c80_JaffaCakes118.exe	103
PID 4212 wrote to memory of 3684	4212	4dde15da019804bd621086db59c34c80_JaffaCakes118.exe	103
PID 4212 wrote to memory of 3684	4212	4dde15da019804bd621086db59c34c80_JaffaCakes118.exe	103

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\4dde15da019804bd621086db59c34c80_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4dde15da019804bd621086db59c34c80_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4212
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wYHznDJOFeHKm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3870.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4904
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp3870.tmp

Filesize
1KB

MD5
e51b73f95e08fd6f9e9e02919ba3025c

SHA1
f8c3714b7413f36c2d88c825f209a1960550d78d

SHA256
b860822901f140ae86c405728667923b6db0e89a44416274c30b825f4ea396a5

SHA512
fa24863e18df2b0dadd7277f674a62ee0c001386d14d181123bf2c4e7d0af327dbd06fd524db7c23873139ea2f4ebbf01b943100d130cb706216facfbe9032a7

Download Submit
memory/3684-29-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/3684-28-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/3684-27-0x0000000006AE0000-0x0000000006B30000-memory.dmp

Filesize
320KB

Download
memory/3684-26-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/3684-25-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/3684-24-0x0000000006620000-0x0000000006686000-memory.dmp

Filesize
408KB

Download
memory/3684-23-0x00000000058A0000-0x00000000058B8000-memory.dmp

Filesize
96KB

Download
memory/3684-22-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/3684-20-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/3684-18-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4212-6-0x00000000058C0000-0x0000000005916000-memory.dmp

Filesize
344KB

Download
memory/4212-7-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/4212-11-0x0000000007160000-0x0000000007202000-memory.dmp

Filesize
648KB

Download
memory/4212-10-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/4212-9-0x0000000074FEE000-0x0000000074FEF000-memory.dmp

Filesize
4KB

Download
memory/4212-21-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/4212-8-0x00000000068D0000-0x00000000068E6000-memory.dmp

Filesize
88KB

Download
memory/4212-12-0x00000000097B0000-0x00000000097EC000-memory.dmp

Filesize
240KB

Download
memory/4212-0-0x0000000074FEE000-0x0000000074FEF000-memory.dmp

Filesize
4KB

Download
memory/4212-5-0x0000000005570000-0x000000000557A000-memory.dmp

Filesize
40KB

Download
memory/4212-4-0x0000000005670000-0x0000000005702000-memory.dmp

Filesize
584KB

Download
memory/4212-3-0x0000000005C20000-0x00000000061C4000-memory.dmp

Filesize
5.6MB

Download
memory/4212-2-0x00000000055D0000-0x000000000566C000-memory.dmp

Filesize
624KB

Download
memory/4212-1-0x0000000000AE0000-0x0000000000BC8000-memory.dmp

Filesize
928KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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