agenttesla | 88cf42a6c3e0ee64dc8be4743b5427fb74d26c30964415e5c9921f80063b8107

General

Target

KhT.scr
Size

687KB
MD5

62ed0ee9372f04bd637e3995624dbc0c
SHA1

96e4d381325b9c0a0581993529baf0cb38050faf
SHA256

17f1c3567b5334eca6e41e7a341faa999fdb22f64004a185874e23dd4a43d06d
SHA512

7e3c79a487e8d472947aab1050db828ae7fe65ae1af049c00dfe7cd1b4668313665dd6380a32b7465a16da292e8270e53c35586ea39dcef3ec50ddc8a1bd2e1a
SSDEEP

12288:4/K0YOwqOpWXqqfNg3Hsgtwmq+MzaMl7+fpfKIIP9HJYxbd:DO7rXHNg3HsgtwD+MzplCfxKzHJI

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.sigmamotorspk.com
Port:
587
Username:
[email protected]
Password:
zarbeazab1234
Email To:
[email protected]

Signatures

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

Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4044-22-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_EXE_Packed_GEN01

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4044-22-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables packed with SmartAssembly 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3972-7-0x0000000005030000-0x000000000503C000-memory.dmp	INDICATOR_EXE_Packed_SmartAssembly

Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4044-22-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4044-22-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4044-22-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4044-22-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

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

Processes:

KhT.scr

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation KhT.scr
Suspicious use of SetThreadContext 1 IoCs

Processes:

KhT.scr

description pid process target process

PID 3972 set thread context of 4044 3972 KhT.scr RegSvcs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

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/Job
T1053

Processes:

schtasks.exe

pid process

1008 schtasks.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	KhT.scr

description	pid	process	target process
PID 3972 set thread context of 4044	3972	KhT.scr	RegSvcs.exe

pid	process
1008	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

Processes:

KhT.scrpowershell.exeRegSvcs.exe

pid	process
3972	KhT.scr
3972	KhT.scr
3972	KhT.scr
3972	KhT.scr
3972	KhT.scr
3972	KhT.scr
3972	KhT.scr
540	powershell.exe
4044	RegSvcs.exe
4044	RegSvcs.exe
540	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

KhT.scrpowershell.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 3972 KhT.scr
Token: SeDebugPrivilege 540 powershell.exe
Token: SeDebugPrivilege 4044 RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	3972	KhT.scr
Token: SeDebugPrivilege	540	powershell.exe
Token: SeDebugPrivilege	4044	RegSvcs.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

KhT.scr

description	pid	process	target process
PID 3972 wrote to memory of 540	3972	KhT.scr	powershell.exe
PID 3972 wrote to memory of 540	3972	KhT.scr	powershell.exe
PID 3972 wrote to memory of 540	3972	KhT.scr	powershell.exe
PID 3972 wrote to memory of 1008	3972	KhT.scr	schtasks.exe
PID 3972 wrote to memory of 1008	3972	KhT.scr	schtasks.exe
PID 3972 wrote to memory of 1008	3972	KhT.scr	schtasks.exe
PID 3972 wrote to memory of 4044	3972	KhT.scr	RegSvcs.exe
PID 3972 wrote to memory of 4044	3972	KhT.scr	RegSvcs.exe
PID 3972 wrote to memory of 4044	3972	KhT.scr	RegSvcs.exe
PID 3972 wrote to memory of 4044	3972	KhT.scr	RegSvcs.exe
PID 3972 wrote to memory of 4044	3972	KhT.scr	RegSvcs.exe
PID 3972 wrote to memory of 4044	3972	KhT.scr	RegSvcs.exe
PID 3972 wrote to memory of 4044	3972	KhT.scr	RegSvcs.exe
PID 3972 wrote to memory of 4044	3972	KhT.scr	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\KhT.scr
"C:\Users\Admin\AppData\Local\Temp\KhT.scr" /S
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3972

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zTmBkRpHGbA.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:540

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zTmBkRpHGbA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD88.tmp"
2⤵
- Creates scheduled task(s)
PID:1008

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4044

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_d5diiayn.stw.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpD88.tmp
Filesize
1KB

MD5
9da38600365baf000e0b0c0d0010bf65

SHA1
6c7e3260fd0dbf234fe401d733985479fe82c05d

SHA256
adf51502b6e86c8bb37ea77c9ddd4e9896e5d3bb1b78a74b07c2e0e83e49ed27

SHA512
ac6c6b8c2c974bcc8f7313b20d47f57c3c60fa6fc3f25f4a4234ae8034be0c19f51f9504251b9e45dd7d67a94707b560f7ab6c28cd825c15eabba318c29ce094

Download Submit
memory/540-58-0x0000000007DF0000-0x000000000846A000-memory.dmp

Filesize
6.5MB

Download
memory/540-19-0x0000000004F10000-0x0000000004F20000-memory.dmp

Filesize
64KB

Download
memory/540-28-0x0000000005E20000-0x0000000005E86000-memory.dmp

Filesize
408KB

Download
memory/540-69-0x0000000074820000-0x0000000074FD0000-memory.dmp

Filesize
7.7MB

Download
memory/540-66-0x0000000007AD0000-0x0000000007AD8000-memory.dmp

Filesize
32KB

Download
memory/540-65-0x0000000007AF0000-0x0000000007B0A000-memory.dmp

Filesize
104KB

Download
memory/540-64-0x00000000079F0000-0x0000000007A04000-memory.dmp

Filesize
80KB

Download
memory/540-63-0x00000000079E0000-0x00000000079EE000-memory.dmp

Filesize
56KB

Download
memory/540-62-0x00000000079B0000-0x00000000079C1000-memory.dmp

Filesize
68KB

Download
memory/540-15-0x0000000004ED0000-0x0000000004F06000-memory.dmp

Filesize
216KB

Download
memory/540-61-0x0000000007A30000-0x0000000007AC6000-memory.dmp

Filesize
600KB

Download
memory/540-60-0x0000000007820000-0x000000000782A000-memory.dmp

Filesize
40KB

Download
memory/540-18-0x0000000074820000-0x0000000074FD0000-memory.dmp

Filesize
7.7MB

Download
memory/540-42-0x0000000004F10000-0x0000000004F20000-memory.dmp

Filesize
64KB

Download
memory/540-21-0x0000000004F10000-0x0000000004F20000-memory.dmp

Filesize
64KB

Download
memory/540-20-0x0000000005550000-0x0000000005B78000-memory.dmp

Filesize
6.2MB

Download
memory/540-59-0x00000000077B0000-0x00000000077CA000-memory.dmp

Filesize
104KB

Download
memory/540-56-0x0000000007470000-0x0000000007513000-memory.dmp

Filesize
652KB

Download
memory/540-55-0x0000000006A50000-0x0000000006A6E000-memory.dmp

Filesize
120KB

Download
memory/540-26-0x00000000054C0000-0x00000000054E2000-memory.dmp

Filesize
136KB

Download
memory/540-27-0x0000000005DB0000-0x0000000005E16000-memory.dmp

Filesize
408KB

Download
memory/540-45-0x00000000704A0000-0x00000000704EC000-memory.dmp

Filesize
304KB

Download
memory/540-39-0x0000000005F90000-0x00000000062E4000-memory.dmp

Filesize
3.3MB

Download
memory/540-44-0x0000000006A70000-0x0000000006AA2000-memory.dmp

Filesize
200KB

Download
memory/540-43-0x000000007F980000-0x000000007F990000-memory.dmp

Filesize
64KB

Download
memory/540-40-0x00000000064B0000-0x00000000064CE000-memory.dmp

Filesize
120KB

Download
memory/540-41-0x00000000064F0000-0x000000000653C000-memory.dmp

Filesize
304KB

Download
memory/3972-0-0x0000000074820000-0x0000000074FD0000-memory.dmp

Filesize
7.7MB

Download
memory/3972-2-0x0000000005050000-0x00000000055F4000-memory.dmp

Filesize
5.6MB

Download
memory/3972-4-0x0000000004D50000-0x0000000004D60000-memory.dmp

Filesize
64KB

Download
memory/3972-5-0x0000000004CF0000-0x0000000004CFA000-memory.dmp

Filesize
40KB

Download
memory/3972-6-0x0000000006070000-0x000000000608A000-memory.dmp

Filesize
104KB

Download
memory/3972-25-0x0000000074820000-0x0000000074FD0000-memory.dmp

Filesize
7.7MB

Download
memory/3972-7-0x0000000005030000-0x000000000503C000-memory.dmp

Filesize
48KB

Download
memory/3972-3-0x0000000004B50000-0x0000000004BE2000-memory.dmp

Filesize
584KB

Download
memory/3972-1-0x00000000000B0000-0x0000000000162000-memory.dmp

Filesize
712KB

Download
memory/3972-8-0x00000000064F0000-0x0000000006572000-memory.dmp

Filesize
520KB

Download
memory/3972-16-0x0000000004D50000-0x0000000004D60000-memory.dmp

Filesize
64KB

Download
memory/3972-10-0x0000000074820000-0x0000000074FD0000-memory.dmp

Filesize
7.7MB

Download
memory/3972-9-0x0000000008B50000-0x0000000008BEC000-memory.dmp

Filesize
624KB

Download
memory/4044-22-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4044-57-0x0000000005DD0000-0x0000000005E20000-memory.dmp

Filesize
320KB

Download
memory/4044-24-0x0000000074820000-0x0000000074FD0000-memory.dmp

Filesize
7.7MB

Download
memory/4044-29-0x0000000004F00000-0x0000000004F10000-memory.dmp

Filesize
64KB

Download
memory/4044-70-0x0000000074820000-0x0000000074FD0000-memory.dmp

Filesize
7.7MB

Download
memory/4044-71-0x0000000004F00000-0x0000000004F10000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads