agenttesla | bfb35a39b72e24ce801468a629e64b1806ae5cf8339ade1ee7f145ec4497be93

General

Target
JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe
Size 270KB
Sample250109-dmfvdavrhv
SHA256 bfb35a39b72e24ce801468a629e64b1806ae5cf8339ade1ee7f145ec4497be93
MD5 ba9d3f63058ea4041190e82e03ffd5f6
SHA1 2bd055abacc3b9ad6f7cb1fa8613c7c44fd21943
SHA512 7e2d37dd5921cda5ebff477308644b1a7f1b2586e6792f17d6f59b911dc04ed91db2569032dd9d5f3fa29e9caefb906153336052c256297354cfe73fc58b5462
SSDEEP 6144:wBlL/c5bsFKd4xN3dRWrJYoozpSbRugzPsVKiyJ:Ce5AEa6VYhpSgePQd6
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla collection discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot2046248941:AAG5Z0PyWwtApmPaysBm59voK10ec9Rgnaw/sendDocument

Signatures

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

AgentTesla payload 5 IoCs

resource	yara_rule
behavioral1/memory/2568-9-0x0000000000400000-0x000000000044B000-memory.dmp	family_agenttesla
behavioral1/memory/2568-11-0x0000000000400000-0x000000000044B000-memory.dmp	family_agenttesla
behavioral1/memory/2568-12-0x0000000000400000-0x000000000044B000-memory.dmp	family_agenttesla
behavioral1/memory/2568-13-0x0000000000400000-0x000000000044B000-memory.dmp	family_agenttesla
behavioral1/memory/2568-14-0x0000000000490000-0x00000000004CC000-memory.dmp	family_agenttesla

Loads dropped DLL 1 IoCs

pid	Process
1284	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.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
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1284 set thread context of 2568	1284	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe	28

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 2 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	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2568	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe
2568	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2568	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1284 wrote to memory of 2568	1284	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe	28
PID 1284 wrote to memory of 2568	1284	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe	28
PID 1284 wrote to memory of 2568	1284	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe	28
PID 1284 wrote to memory of 2568	1284	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe	28
PID 1284 wrote to memory of 2568	1284	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe	28
PID 1284 wrote to memory of 2568	1284	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe	28
PID 1284 wrote to memory of 2568	1284	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe	28
PID 1284 wrote to memory of 2568	1284	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe	28
PID 1284 wrote to memory of 2568	1284	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe	28
PID 1284 wrote to memory of 2568	1284	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe	28
PID 1284 wrote to memory of 2568	1284	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1284
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ba9d3f63058ea4041190e82e03ffd5f6.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:2568

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

aneyji.dll

Path \Users\Admin\AppData\Local\Temp\nsy782D.tmp\aneyji.dll
Size 19KB
SHA256 3c3b81e2f3de386bb78562b8005fcc582aa83d1bd5ac99aca14bd235f401c018
MD5 f7a30cb571aa862021ff786169f72a80
SHA1 d002635afeacd67ad2e5764d4dd07e0ec5f49ae3
SHA512 7fc63a94a72b93ff57645d3e8c92726b7f77976ed5801461bfdaf4638dd8376565dad5f6663d1e0bd064e7521230b2b9f7aae90a5733f387fa003b22b501c69e
SSDEEP 384:mjrLtiTvRxxt1BoXiaQxmCc1abG8QMqjfB4z:krLYTvR7xJxmpKG8ay
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1284-7-0x0000000010005000-0x0000000010007000-memory.dmp

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memory/2568-9-0x0000000000400000-0x000000000044B000-memory.dmp

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memory/2568-11-0x0000000000400000-0x000000000044B000-memory.dmp

Download

memory/2568-12-0x0000000000400000-0x000000000044B000-memory.dmp

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memory/2568-13-0x0000000000400000-0x000000000044B000-memory.dmp

Download

memory/2568-14-0x0000000000490000-0x00000000004CC000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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