agenttesla | e50738bd86a1d753a2ccf0e88cfca85fb58986ce16cb9db779e3cbb45e9a4c07

General

Target

cd8b7c72ba0756f8e6477259d399b960_JaffaCakes118.exe
Size

1.1MB
MD5

cd8b7c72ba0756f8e6477259d399b960
SHA1

d3e9536cbe68699c134823f4730e9a388b403b3b
SHA256

e50738bd86a1d753a2ccf0e88cfca85fb58986ce16cb9db779e3cbb45e9a4c07
SHA512

0abb609b0d5d946ff7a1c884bc533cf764d92e706cca9438e10b45570af402b3e29defc70770b31a716b93676305fdec142cb0f15ac493a82d2cddaa544e5f46
SSDEEP

24576:KyBLjP6+b1EyCGcZV/zerKsAEUVTa9hJz7H:rP1MT/SujEQTKD7H

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.prcpl.com
Port:
587
Username:
[email protected]
Password:
jyotika@2015

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/3100-12-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegSvcs.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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	cd8b7c72ba0756f8e6477259d399b960_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-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WCPCe = "C:\\Users\\Admin\\AppData\\Roaming\\WCPCe\\WCPCe.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4888 set thread context of 3100	4888	cd8b7c72ba0756f8e6477259d399b960_JaffaCakes118.exe	108

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	cd8b7c72ba0756f8e6477259d399b960_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.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
1040	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4888	cd8b7c72ba0756f8e6477259d399b960_JaffaCakes118.exe
4888	cd8b7c72ba0756f8e6477259d399b960_JaffaCakes118.exe
4888	cd8b7c72ba0756f8e6477259d399b960_JaffaCakes118.exe
4888	cd8b7c72ba0756f8e6477259d399b960_JaffaCakes118.exe
4888	cd8b7c72ba0756f8e6477259d399b960_JaffaCakes118.exe
3100	RegSvcs.exe
3100	RegSvcs.exe
3100	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4888	cd8b7c72ba0756f8e6477259d399b960_JaffaCakes118.exe
Token: SeDebugPrivilege	3100	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4888 wrote to memory of 1040	4888	cd8b7c72ba0756f8e6477259d399b960_JaffaCakes118.exe	106
PID 4888 wrote to memory of 1040	4888	cd8b7c72ba0756f8e6477259d399b960_JaffaCakes118.exe	106
PID 4888 wrote to memory of 1040	4888	cd8b7c72ba0756f8e6477259d399b960_JaffaCakes118.exe	106
PID 4888 wrote to memory of 3100	4888	cd8b7c72ba0756f8e6477259d399b960_JaffaCakes118.exe	108
PID 4888 wrote to memory of 3100	4888	cd8b7c72ba0756f8e6477259d399b960_JaffaCakes118.exe	108
PID 4888 wrote to memory of 3100	4888	cd8b7c72ba0756f8e6477259d399b960_JaffaCakes118.exe	108
PID 4888 wrote to memory of 3100	4888	cd8b7c72ba0756f8e6477259d399b960_JaffaCakes118.exe	108
PID 4888 wrote to memory of 3100	4888	cd8b7c72ba0756f8e6477259d399b960_JaffaCakes118.exe	108
PID 4888 wrote to memory of 3100	4888	cd8b7c72ba0756f8e6477259d399b960_JaffaCakes118.exe	108
PID 4888 wrote to memory of 3100	4888	cd8b7c72ba0756f8e6477259d399b960_JaffaCakes118.exe	108
PID 4888 wrote to memory of 3100	4888	cd8b7c72ba0756f8e6477259d399b960_JaffaCakes118.exe	108

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\cd8b7c72ba0756f8e6477259d399b960_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cd8b7c72ba0756f8e6477259d399b960_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4888
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jYbhQanutam" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE395.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1040
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3100

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4088,i,1828333185976713750,7918646547767660928,262144 --variations-seed-version --mojo-platform-channel-handle=4384 /prefetch:8
1⤵
PID:3892

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

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\tmpE395.tmp

Filesize
1KB

MD5
13c209867b1547ec3aa7edbb3d13a4d9

SHA1
85497e099919fbb3dd1756650acd86ec32f12c0a

SHA256
00e39c3233f1433e8c8ab42bf7a2c0df34993372f7557aa2b74112c01058deea

SHA512
b53286b7962fd0311da4f07f3ce468c0d91c34dff477cc8e54a73f09fa60675c1d6d845cdea1363fb0758ef05c7f8c1082fac1a98a5d6a9bb768ce7d9e8fe5d9

Download Submit
memory/3100-18-0x00000000058E0000-0x00000000058F8000-memory.dmp

Filesize
96KB

Download
memory/3100-16-0x0000000005970000-0x0000000005F14000-memory.dmp

Filesize
5.6MB

Download
memory/3100-25-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/3100-24-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/3100-23-0x0000000006880000-0x000000000688A000-memory.dmp

Filesize
40KB

Download
memory/3100-21-0x0000000006890000-0x00000000068E0000-memory.dmp

Filesize
320KB

Download
memory/3100-19-0x0000000005F20000-0x0000000005F86000-memory.dmp

Filesize
408KB

Download
memory/3100-17-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/3100-12-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/3100-14-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/4888-6-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/4888-15-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/4888-2-0x0000000005A20000-0x0000000005ABC000-memory.dmp

Filesize
624KB

Download
memory/4888-8-0x0000000008770000-0x0000000008826000-memory.dmp

Filesize
728KB

Download
memory/4888-0-0x0000000074F9E000-0x0000000074F9F000-memory.dmp

Filesize
4KB

Download
memory/4888-7-0x0000000005FA0000-0x000000000604C000-memory.dmp

Filesize
688KB

Download
memory/4888-1-0x0000000000F50000-0x0000000001072000-memory.dmp

Filesize
1.1MB

Download
memory/4888-5-0x0000000074F9E000-0x0000000074F9F000-memory.dmp

Filesize
4KB

Download
memory/4888-4-0x0000000005B60000-0x0000000005BF2000-memory.dmp

Filesize
584KB

Download
memory/4888-3-0x00000000033C0000-0x00000000033D2000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads