agenttesla | 3ec6f6e82d0a4ae08c365a701ab02d793e59db3a54f012c0639b693d7d5cf573

General

Target

specification.xlsx
Size

379KB
MD5

94c2bb7133cc4bebeb9fbe43fc739d87
SHA1

daa3c4e5fc17f81fc4e1f6a54fa822bb59b2e36d
SHA256

3ec6f6e82d0a4ae08c365a701ab02d793e59db3a54f012c0639b693d7d5cf573
SHA512

fc24e772f07aaefed535837f0dd59a9e689766fa5325929e03e88371ac2b981b98ceeaf8b4eb239f1509691f8605e4e46e99fbd2fd43ad04284da4d41b731e41

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.scrablex.com
Port:
587
Username:
[email protected]
Password:
Chisom123.

Signatures

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

AgentTesla Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2040-76-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2040-77-0x00000000004375DE-mapping.dmp	family_agenttesla
behavioral1/memory/2040-79-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

5 1944 EQNEDT32.EXE
Executes dropped EXE 3 IoCs

Processes:

vbc.exevbc.exevbc.exe

pid process

328 vbc.exe
1932 vbc.exe
2040 vbc.exe
Loads dropped DLL 1 IoCs

Processes:

EQNEDT32.EXE

pid process

1944 EQNEDT32.EXE
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
5	1944	EQNEDT32.EXE

pid	process
328	vbc.exe
1932	vbc.exe
2040	vbc.exe

pid	process
1944	EQNEDT32.EXE

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

vbc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\aKZoqyj = "C:\\Users\\Admin\\AppData\\Roaming\\aKZoqyj\\aKZoqyj.exe"	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

vbc.exe

description pid process target process

PID 328 set thread context of 2040 328 vbc.exe vbc.exe
Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE
Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
exploit

Exploitation for Client Execution
T1203

Processes:

EQNEDT32.EXE

pid process

1944 EQNEDT32.EXE

description	pid	process	target process
PID 328 set thread context of 2040	328	vbc.exe	vbc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

pid	process
1944	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1776 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

vbc.exevbc.exe

pid process

328 vbc.exe
328 vbc.exe
328 vbc.exe
2040 vbc.exe
2040 vbc.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

vbc.exevbc.exe

description pid process

Token: SeDebugPrivilege 328 vbc.exe
Token: SeDebugPrivilege 2040 vbc.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1776 EXCEL.EXE
1776 EXCEL.EXE
1776 EXCEL.EXE

pid	process
1776	EXCEL.EXE

pid	process
328	vbc.exe
328	vbc.exe
328	vbc.exe
2040	vbc.exe
2040	vbc.exe

description	pid	process
Token: SeDebugPrivilege	328	vbc.exe
Token: SeDebugPrivilege	2040	vbc.exe

pid	process
1776	EXCEL.EXE
1776	EXCEL.EXE
1776	EXCEL.EXE

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

EQNEDT32.EXEvbc.exe

description	pid	process	target process
PID 1944 wrote to memory of 328	1944	EQNEDT32.EXE	vbc.exe
PID 1944 wrote to memory of 328	1944	EQNEDT32.EXE	vbc.exe
PID 1944 wrote to memory of 328	1944	EQNEDT32.EXE	vbc.exe
PID 1944 wrote to memory of 328	1944	EQNEDT32.EXE	vbc.exe
PID 328 wrote to memory of 1932	328	vbc.exe	vbc.exe
PID 328 wrote to memory of 1932	328	vbc.exe	vbc.exe
PID 328 wrote to memory of 1932	328	vbc.exe	vbc.exe
PID 328 wrote to memory of 1932	328	vbc.exe	vbc.exe
PID 328 wrote to memory of 2040	328	vbc.exe	vbc.exe
PID 328 wrote to memory of 2040	328	vbc.exe	vbc.exe
PID 328 wrote to memory of 2040	328	vbc.exe	vbc.exe
PID 328 wrote to memory of 2040	328	vbc.exe	vbc.exe
PID 328 wrote to memory of 2040	328	vbc.exe	vbc.exe
PID 328 wrote to memory of 2040	328	vbc.exe	vbc.exe
PID 328 wrote to memory of 2040	328	vbc.exe	vbc.exe
PID 328 wrote to memory of 2040	328	vbc.exe	vbc.exe
PID 328 wrote to memory of 2040	328	vbc.exe	vbc.exe

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\specification.xlsx
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1776

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:1944

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:328

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
3⤵
- Executes dropped EXE
PID:1932

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2040

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Exploitation for Client Execution

Scripting

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

Scripting

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Public\vbc.exe
MD5
f17d8c94783597296264ab489cfc64b8

SHA1
b967e59eabac83697e27576e54420623d5ebedfb

SHA256
3b3f6d41ee6c1f630f6aa74edbe5d524fe2333a91e5234509c647432f663819f

SHA512
b2ae3996f8a80b4e2689616b4b4443bfd9aff6633515713e451931650054b588e129389278f0e8eeb8820d5980f5f165f4cdc921a8d196a3a16f212628a3de38

Download Submit
C:\Users\Public\vbc.exe
MD5
f17d8c94783597296264ab489cfc64b8

SHA1
b967e59eabac83697e27576e54420623d5ebedfb

SHA256
3b3f6d41ee6c1f630f6aa74edbe5d524fe2333a91e5234509c647432f663819f

SHA512
b2ae3996f8a80b4e2689616b4b4443bfd9aff6633515713e451931650054b588e129389278f0e8eeb8820d5980f5f165f4cdc921a8d196a3a16f212628a3de38

Download Submit
C:\Users\Public\vbc.exe
MD5
f17d8c94783597296264ab489cfc64b8

SHA1
b967e59eabac83697e27576e54420623d5ebedfb

SHA256
3b3f6d41ee6c1f630f6aa74edbe5d524fe2333a91e5234509c647432f663819f

SHA512
b2ae3996f8a80b4e2689616b4b4443bfd9aff6633515713e451931650054b588e129389278f0e8eeb8820d5980f5f165f4cdc921a8d196a3a16f212628a3de38

Download Submit
C:\Users\Public\vbc.exe
MD5
f17d8c94783597296264ab489cfc64b8

SHA1
b967e59eabac83697e27576e54420623d5ebedfb

SHA256
3b3f6d41ee6c1f630f6aa74edbe5d524fe2333a91e5234509c647432f663819f

SHA512
b2ae3996f8a80b4e2689616b4b4443bfd9aff6633515713e451931650054b588e129389278f0e8eeb8820d5980f5f165f4cdc921a8d196a3a16f212628a3de38

Download Submit
\Users\Public\vbc.exe
MD5
f17d8c94783597296264ab489cfc64b8

SHA1
b967e59eabac83697e27576e54420623d5ebedfb

SHA256
3b3f6d41ee6c1f630f6aa74edbe5d524fe2333a91e5234509c647432f663819f

SHA512
b2ae3996f8a80b4e2689616b4b4443bfd9aff6633515713e451931650054b588e129389278f0e8eeb8820d5980f5f165f4cdc921a8d196a3a16f212628a3de38

Download Submit
memory/328-71-0x00000000008D0000-0x00000000008D9000-memory.dmp

Filesize
36KB

Download
memory/328-73-0x0000000001260000-0x00000000012D9000-memory.dmp

Filesize
484KB

Download
memory/328-74-0x0000000001330000-0x0000000001379000-memory.dmp

Filesize
292KB

Download
memory/328-68-0x00000000013C0000-0x00000000013C1000-memory.dmp

Filesize
4KB

Download
memory/328-70-0x0000000004DF0000-0x0000000004DF1000-memory.dmp

Filesize
4KB

Download
memory/328-65-0x0000000000000000-mapping.dmp

Download
memory/1776-72-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1776-60-0x000000002F3A1000-0x000000002F3A4000-memory.dmp

Filesize
12KB

Download
memory/1776-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1776-61-0x0000000071191000-0x0000000071193000-memory.dmp

Filesize
8KB

Download
memory/1944-63-0x0000000075C31000-0x0000000075C33000-memory.dmp

Filesize
8KB

Download
memory/2040-76-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2040-77-0x00000000004375DE-mapping.dmp

Download
memory/2040-79-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2040-81-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads