agenttesla | 3c00e40f4394802eb5ffa0680bd9f9845964dc3bb7487875512e61a0ee1b7a6c

General

Target

HALKBANK.exe
Size

2.8MB
MD5

fe768517f29326fe6c77a2ec75ebb115
SHA1

5f6996bc64096c6603ff732cf80b7a0336e75d45
SHA256

283e544c4bb4dcba6f6b982e53d33bb1b2bf342314f92b144bc98f4ebafbce05
SHA512

99a58f69eb138c29e2360a057536ae242b69d7c5cd1b71d06f5b9dcf3d74ecea887a6af0716f43f373c2bea3d2ab879d51526bfcc2ff74967e6c88a945ea1d14

Score

10^/10

agenttesla masslogger keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.decoplanet.net
Port:
587
Username:
[email protected]
Password:
ayla1939

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
stealer spyware masslogger

MassLogger Main Payload 3 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\chromee.exe	family_masslogger
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\chromee.exe	family_masslogger
behavioral2/memory/3152-137-0x0000000000FD0000-0x0000000001106000-memory.dmp	family_masslogger

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3156-141-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

Processes:

chromee.exeRegAsm.exe

pid process

3152 chromee.exe
3156 RegAsm.exe

pid	process
3152	chromee.exe
3156	RegAsm.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

Processes:

HALKBANK.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	HALKBANK.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\chromee = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\chromee.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

HALKBANK.exe

description pid process target process

PID 3132 set thread context of 3156 3132 HALKBANK.exe RegAsm.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

HALKBANK.exechromee.exeRegAsm.exe

pid process

3132 HALKBANK.exe
3132 HALKBANK.exe
3132 HALKBANK.exe
3152 chromee.exe
3156 RegAsm.exe
3156 RegAsm.exe
3152 chromee.exe
3152 chromee.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

HALKBANK.exechromee.exeRegAsm.exe

description pid process

Token: SeDebugPrivilege 3132 HALKBANK.exe
Token: SeDebugPrivilege 3152 chromee.exe
Token: SeDebugPrivilege 3156 RegAsm.exe

description	pid	process	target process
PID 3132 set thread context of 3156	3132	HALKBANK.exe	RegAsm.exe

pid	process
3132	HALKBANK.exe
3132	HALKBANK.exe
3132	HALKBANK.exe
3152	chromee.exe
3156	RegAsm.exe
3156	RegAsm.exe
3152	chromee.exe
3152	chromee.exe

description	pid	process
Token: SeDebugPrivilege	3132	HALKBANK.exe
Token: SeDebugPrivilege	3152	chromee.exe
Token: SeDebugPrivilege	3156	RegAsm.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

HALKBANK.execmd.exechromee.exe

description	pid	process	target process
PID 3132 wrote to memory of 3152	3132	HALKBANK.exe	chromee.exe
PID 3132 wrote to memory of 3152	3132	HALKBANK.exe	chromee.exe
PID 3132 wrote to memory of 3152	3132	HALKBANK.exe	chromee.exe
PID 3132 wrote to memory of 4220	3132	HALKBANK.exe	cmd.exe
PID 3132 wrote to memory of 4220	3132	HALKBANK.exe	cmd.exe
PID 3132 wrote to memory of 4220	3132	HALKBANK.exe	cmd.exe
PID 4220 wrote to memory of 1432	4220	cmd.exe	reg.exe
PID 4220 wrote to memory of 1432	4220	cmd.exe	reg.exe
PID 4220 wrote to memory of 1432	4220	cmd.exe	reg.exe
PID 3132 wrote to memory of 3156	3132	HALKBANK.exe	RegAsm.exe
PID 3132 wrote to memory of 3156	3132	HALKBANK.exe	RegAsm.exe
PID 3132 wrote to memory of 3156	3132	HALKBANK.exe	RegAsm.exe
PID 3132 wrote to memory of 3156	3132	HALKBANK.exe	RegAsm.exe
PID 3132 wrote to memory of 3156	3132	HALKBANK.exe	RegAsm.exe
PID 3132 wrote to memory of 3156	3132	HALKBANK.exe	RegAsm.exe
PID 3132 wrote to memory of 3156	3132	HALKBANK.exe	RegAsm.exe
PID 3132 wrote to memory of 3156	3132	HALKBANK.exe	RegAsm.exe
PID 3152 wrote to memory of 1484	3152	chromee.exe	InstallUtil.exe
PID 3152 wrote to memory of 1484	3152	chromee.exe	InstallUtil.exe
PID 3152 wrote to memory of 1484	3152	chromee.exe	InstallUtil.exe
PID 3152 wrote to memory of 1484	3152	chromee.exe	InstallUtil.exe
PID 3152 wrote to memory of 1484	3152	chromee.exe	InstallUtil.exe
PID 3152 wrote to memory of 1484	3152	chromee.exe	InstallUtil.exe
PID 3152 wrote to memory of 1484	3152	chromee.exe	InstallUtil.exe
PID 3152 wrote to memory of 1484	3152	chromee.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\HALKBANK.exe
"C:\Users\Admin\AppData\Local\Temp\HALKBANK.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3132

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\chromee.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\chromee.exe"
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3152

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
3⤵
PID:1484

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v chromee /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\chromee.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:4220

C:\Windows\SysWOW64\reg.exe
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v chromee /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\chromee.exe"
3⤵
- Adds Run key to start application
PID:1432

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
"C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3156

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
Filesize
63KB

MD5
0d5df43af2916f47d00c1573797c1a13

SHA1
230ab5559e806574d26b4c20847c368ed55483b0

SHA256
c066aee7aa3aa83f763ebc5541daa266ed6c648fbffcde0d836a13b221bb2adc

SHA512
f96cf9e1890746b12daf839a6d0f16f062b72c1b8a40439f96583f242980f10f867720232a6fa0f7d4d7ac0a7a6143981a5a130d6417ea98b181447134c7cfe2

Download Submit
C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
Filesize
63KB

MD5
0d5df43af2916f47d00c1573797c1a13

SHA1
230ab5559e806574d26b4c20847c368ed55483b0

SHA256
c066aee7aa3aa83f763ebc5541daa266ed6c648fbffcde0d836a13b221bb2adc

SHA512
f96cf9e1890746b12daf839a6d0f16f062b72c1b8a40439f96583f242980f10f867720232a6fa0f7d4d7ac0a7a6143981a5a130d6417ea98b181447134c7cfe2

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\chromee.exe
Filesize
1.2MB

MD5
9a4460e1522d6e13d6f326674524c405

SHA1
d8484d2d265f4f5d83917532465210ddf658aa08

SHA256
0122fb26a12f86f9e8eef0498a4d7f350846885bdb8b6ced21a68baa0e73be6b

SHA512
0bd99764516d33191d5bf7b2c3b1f247aad039136892f39c4941c8aa07f4c1cc3935949c1d8c91ec4a28ec3125302357390df9be6187720ccdb0a97221bfa1a2

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\chromee.exe
Filesize
1.2MB

MD5
9a4460e1522d6e13d6f326674524c405

SHA1
d8484d2d265f4f5d83917532465210ddf658aa08

SHA256
0122fb26a12f86f9e8eef0498a4d7f350846885bdb8b6ced21a68baa0e73be6b

SHA512
0bd99764516d33191d5bf7b2c3b1f247aad039136892f39c4941c8aa07f4c1cc3935949c1d8c91ec4a28ec3125302357390df9be6187720ccdb0a97221bfa1a2

Download Submit
memory/1432-139-0x0000000000000000-mapping.dmp

Download
memory/1484-146-0x0000000000000000-mapping.dmp

Download
memory/3132-131-0x0000000006020000-0x00000000065C4000-memory.dmp

Filesize
5.6MB

Download
memory/3132-132-0x0000000005A70000-0x0000000005B02000-memory.dmp

Filesize
584KB

Download
memory/3132-133-0x0000000005740000-0x0000000005784000-memory.dmp

Filesize
272KB

Download
memory/3132-130-0x00000000006A0000-0x0000000000980000-memory.dmp

Filesize
2.9MB

Download
memory/3152-134-0x0000000000000000-mapping.dmp

Download
memory/3152-137-0x0000000000FD0000-0x0000000001106000-memory.dmp

Filesize
1.2MB

Download
memory/3156-141-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3156-140-0x0000000000000000-mapping.dmp

Download
memory/3156-144-0x0000000005530000-0x00000000055CC000-memory.dmp

Filesize
624KB

Download
memory/3156-145-0x0000000006180000-0x00000000061E6000-memory.dmp

Filesize
408KB

Download
memory/4220-138-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads