agenttesla | 006c44f3be8c5386db93ce002df488496970d49e2a02460a412891a32ca8bc35

General

Target

Outstanding_2019-20.exe
Size

430KB
MD5

d05aa23160135954f7c299417c180a3d
SHA1

092b8174bdadbee284b574cf9fd1c9c50e195c12
SHA256

7ad0932d78113412ba4404ed897c0981f8582886940866f7908c07d99ee077a9
SHA512

322679ef529e5f7436efd8174c5852010eae7fe42e09ac5b39a51d7c407ba6114cf84fba9890ae275f3220a8c8a48b2f998805b86a8c731e03f3925dbc3cbbf5

Score

10^/10

agenttesla collection evasion keylogger persistence rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.pro-powersourcing.com
Port:
587
Username:
[email protected]
Password:
china1977

Signatures

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

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1164-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1164-64-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1164-65-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1164-66-0x000000000044CE0E-mapping.dmp	family_agenttesla
behavioral1/memory/1164-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1164-70-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1972-56-0x0000000000B50000-0x0000000000BA8000-memory.dmp	rezer0

Disables Task Manager via registry modification
evasion
Drops file in Drivers directory 1 IoCs

Processes:

RegSvcs.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegSvcs.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Outstanding_2019-20.exe

description pid process target process

PID 1972 set thread context of 1164 1972 Outstanding_2019-20.exe RegSvcs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1448 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

608 REG.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

Outstanding_2019-20.exeRegSvcs.exe

pid process

1972 Outstanding_2019-20.exe
1972 Outstanding_2019-20.exe
1972 Outstanding_2019-20.exe
1164 RegSvcs.exe
1164 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Outstanding_2019-20.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1972 Outstanding_2019-20.exe
Token: SeDebugPrivilege 1164 RegSvcs.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegSvcs.exe

pid process

1164 RegSvcs.exe

description	pid	process	target process
PID 1972 set thread context of 1164	1972	Outstanding_2019-20.exe	RegSvcs.exe

pid	process
1448	schtasks.exe

pid	process
608	REG.exe

pid	process
1972	Outstanding_2019-20.exe
1972	Outstanding_2019-20.exe
1972	Outstanding_2019-20.exe
1164	RegSvcs.exe
1164	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1972	Outstanding_2019-20.exe
Token: SeDebugPrivilege	1164	RegSvcs.exe

pid	process
1164	RegSvcs.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

Outstanding_2019-20.exeRegSvcs.exe

description	pid	process	target process
PID 1972 wrote to memory of 1448	1972	Outstanding_2019-20.exe	schtasks.exe
PID 1972 wrote to memory of 1448	1972	Outstanding_2019-20.exe	schtasks.exe
PID 1972 wrote to memory of 1448	1972	Outstanding_2019-20.exe	schtasks.exe
PID 1972 wrote to memory of 1448	1972	Outstanding_2019-20.exe	schtasks.exe
PID 1972 wrote to memory of 1164	1972	Outstanding_2019-20.exe	RegSvcs.exe
PID 1972 wrote to memory of 1164	1972	Outstanding_2019-20.exe	RegSvcs.exe
PID 1972 wrote to memory of 1164	1972	Outstanding_2019-20.exe	RegSvcs.exe
PID 1972 wrote to memory of 1164	1972	Outstanding_2019-20.exe	RegSvcs.exe
PID 1972 wrote to memory of 1164	1972	Outstanding_2019-20.exe	RegSvcs.exe
PID 1972 wrote to memory of 1164	1972	Outstanding_2019-20.exe	RegSvcs.exe
PID 1972 wrote to memory of 1164	1972	Outstanding_2019-20.exe	RegSvcs.exe
PID 1972 wrote to memory of 1164	1972	Outstanding_2019-20.exe	RegSvcs.exe
PID 1972 wrote to memory of 1164	1972	Outstanding_2019-20.exe	RegSvcs.exe
PID 1972 wrote to memory of 1164	1972	Outstanding_2019-20.exe	RegSvcs.exe
PID 1972 wrote to memory of 1164	1972	Outstanding_2019-20.exe	RegSvcs.exe
PID 1972 wrote to memory of 1164	1972	Outstanding_2019-20.exe	RegSvcs.exe
PID 1164 wrote to memory of 608	1164	RegSvcs.exe	REG.exe
PID 1164 wrote to memory of 608	1164	RegSvcs.exe	REG.exe
PID 1164 wrote to memory of 608	1164	RegSvcs.exe	REG.exe
PID 1164 wrote to memory of 608	1164	RegSvcs.exe	REG.exe
PID 1164 wrote to memory of 1920	1164	RegSvcs.exe	netsh.exe
PID 1164 wrote to memory of 1920	1164	RegSvcs.exe	netsh.exe
PID 1164 wrote to memory of 1920	1164	RegSvcs.exe	netsh.exe
PID 1164 wrote to memory of 1920	1164	RegSvcs.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Outstanding_2019-20.exe
"C:\Users\Admin\AppData\Local\Temp\Outstanding_2019-20.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1972

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ARTqjgRpnyI" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDF87.tmp"
2⤵
- Creates scheduled task(s)
PID:1448

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
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1164

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
3⤵
- Modifies registry key
PID:608

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1920

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpDF87.tmp
Filesize
1KB

MD5
5eab8a7556808697fb31bc7456e7e8e8

SHA1
30cf99dafbc9b95d5db006932b78f80fdb0538fd

SHA256
184af31eaf16e62e4763b829b6d49b12715ae5e9c2aedff5340c5fc462020fbb

SHA512
db06e43d5f7181cfcd1564a9286ef9906c08376ec9511c7edc49f133a2a5d59218e646ade9b6a6be9d74c60f1b1dcee508efb0fd7211f30cd66355a745923e5a

Download Submit
memory/608-72-0x0000000000000000-mapping.dmp

Download
memory/1164-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1164-64-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1164-70-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1164-66-0x000000000044CE0E-mapping.dmp

Download
memory/1164-60-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1164-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1164-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1164-65-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1448-58-0x0000000000000000-mapping.dmp

Download
memory/1920-73-0x0000000000000000-mapping.dmp

Download
memory/1972-57-0x0000000075FE1000-0x0000000075FE3000-memory.dmp

Filesize
8KB

Download
memory/1972-56-0x0000000000B50000-0x0000000000BA8000-memory.dmp

Filesize
352KB

Download
memory/1972-54-0x0000000001270000-0x00000000012E2000-memory.dmp

Filesize
456KB

Download
memory/1972-55-0x0000000000350000-0x0000000000358000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads