azorult | 257586cb20dfe8e3fa19a99c2084e51904c6e714b021a72d39fd382e8910b709

Analysis

max time kernel
73s
max time network
70s
platform
windows7_x64
resource
win7v20201028
submitted
20-01-2021 06:40

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General

Target

Purchase Order 45584.xlsx
Size

2.3MB
MD5

69eac4dc4f1e64e9912a7a20acdea37d
SHA1

05a713ac7bb1c39c51aaa4ba132131e751f70db4
SHA256

257586cb20dfe8e3fa19a99c2084e51904c6e714b021a72d39fd382e8910b709
SHA512

0cb333bce7c9800ad2ae0705d5adb7e7dc20104ac024ece04cf62a0bfe3be89ddcc9791c51f869f9303bb7b35c40ef3219b5bf63a7c42995231e37138e296b4f

Score

10^/10

azorult evasion infostealer trojan

Malware Config

Extracted

Family

azorult

http://al-ifah.com/PL341/index.php

Signatures

Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
trojan infostealer azorult
Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

6 1412 EQNEDT32.EXE
Executes dropped EXE 3 IoCs

Processes:

vbc.exevbc.exevbc.exe

pid process

428 vbc.exe
1952 vbc.exe
1272 vbc.exe
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

flow	pid	process
6	1412	EQNEDT32.EXE

pid	process
428	vbc.exe
1952	vbc.exe
1272	vbc.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

vbc.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	vbc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	vbc.exe

Loads dropped DLL 4 IoCs

Processes:

EQNEDT32.EXE

pid process

1412 EQNEDT32.EXE
1412 EQNEDT32.EXE
1412 EQNEDT32.EXE
1412 EQNEDT32.EXE
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

pid	process
1412	EQNEDT32.EXE
1412	EQNEDT32.EXE
1412	EQNEDT32.EXE
1412	EQNEDT32.EXE

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

vbc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	vbc.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

vbc.exe

description pid process target process

PID 428 set thread context of 1272 428 vbc.exe vbc.exe
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

112 schtasks.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

1412 EQNEDT32.EXE

description	pid	process	target process
PID 428 set thread context of 1272	428	vbc.exe	vbc.exe

pid	process
112	schtasks.exe

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

pid	process
1412	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\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-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1064 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

vbc.exe

pid process

428 vbc.exe
428 vbc.exe
428 vbc.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

vbc.exe

description pid process

Token: SeDebugPrivilege 428 vbc.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1064 EXCEL.EXE
1064 EXCEL.EXE
1064 EXCEL.EXE

pid	process
1064	EXCEL.EXE

pid	process
428	vbc.exe
428	vbc.exe
428	vbc.exe

description	pid	process
Token: SeDebugPrivilege	428	vbc.exe

pid	process
1064	EXCEL.EXE
1064	EXCEL.EXE
1064	EXCEL.EXE

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

EQNEDT32.EXEvbc.exe

description	pid	process	target process
PID 1412 wrote to memory of 428	1412	EQNEDT32.EXE	vbc.exe
PID 1412 wrote to memory of 428	1412	EQNEDT32.EXE	vbc.exe
PID 1412 wrote to memory of 428	1412	EQNEDT32.EXE	vbc.exe
PID 1412 wrote to memory of 428	1412	EQNEDT32.EXE	vbc.exe
PID 428 wrote to memory of 112	428	vbc.exe	schtasks.exe
PID 428 wrote to memory of 112	428	vbc.exe	schtasks.exe
PID 428 wrote to memory of 112	428	vbc.exe	schtasks.exe
PID 428 wrote to memory of 112	428	vbc.exe	schtasks.exe
PID 428 wrote to memory of 1952	428	vbc.exe	vbc.exe
PID 428 wrote to memory of 1952	428	vbc.exe	vbc.exe
PID 428 wrote to memory of 1952	428	vbc.exe	vbc.exe
PID 428 wrote to memory of 1952	428	vbc.exe	vbc.exe
PID 428 wrote to memory of 1272	428	vbc.exe	vbc.exe
PID 428 wrote to memory of 1272	428	vbc.exe	vbc.exe
PID 428 wrote to memory of 1272	428	vbc.exe	vbc.exe
PID 428 wrote to memory of 1272	428	vbc.exe	vbc.exe
PID 428 wrote to memory of 1272	428	vbc.exe	vbc.exe
PID 428 wrote to memory of 1272	428	vbc.exe	vbc.exe
PID 428 wrote to memory of 1272	428	vbc.exe	vbc.exe
PID 428 wrote to memory of 1272	428	vbc.exe	vbc.exe
PID 428 wrote to memory of 1272	428	vbc.exe	vbc.exe
PID 428 wrote to memory of 1272	428	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\Purchase Order 45584.xlsx"
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1064

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:1412

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:428

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FIbVXFwlmJS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4692.tmp"
3⤵
- Creates scheduled task(s)
PID:112

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
3⤵
- Executes dropped EXE
PID:1952

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
3⤵
- Executes dropped EXE
PID:1272

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

T1064

Scheduled Task

T1053

Exploitation for Client Execution

T1203

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Scripting

T1064

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Peripheral Device Discovery

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp4692.tmp
MD5
d0871a55adf4bb4bab149375af1e3e98

SHA1
4d44e88f5993e36ed4f2523c7292c39ee77e0195

SHA256
a7dff174e3cc37e05be82c0d8a50c908a06b0cc92a0cbc0582f1e75857da3158

SHA512
f592e7aee18d783de8a079818660e7c77a07fe1caa33f71c7273178a868c0a47ece394be3c06670e930b3c04ffc1e24cffc8a29cad4ef7d80755354064b9bc42

Download Submit
C:\Users\Public\vbc.exe
MD5
06904ee5e04abada43cb86d7a0457b5e

SHA1
749902ad199c0c1063ec0c0150db410f8579c54b

SHA256
3827b74e0bdab2de9236a5157690e90526a50d128e18f869b3d283c1a09069e9

SHA512
cb79a70da1d32501ed647b69198804eb37774624910b97a600c0a07a0aacd54ca1eec6e42261e4df7f4590c746e573aae4ace775d21d22577d472cc31cdd5016

Download Submit
C:\Users\Public\vbc.exe
MD5
06904ee5e04abada43cb86d7a0457b5e

SHA1
749902ad199c0c1063ec0c0150db410f8579c54b

SHA256
3827b74e0bdab2de9236a5157690e90526a50d128e18f869b3d283c1a09069e9

SHA512
cb79a70da1d32501ed647b69198804eb37774624910b97a600c0a07a0aacd54ca1eec6e42261e4df7f4590c746e573aae4ace775d21d22577d472cc31cdd5016

Download Submit
C:\Users\Public\vbc.exe
MD5
06904ee5e04abada43cb86d7a0457b5e

SHA1
749902ad199c0c1063ec0c0150db410f8579c54b

SHA256
3827b74e0bdab2de9236a5157690e90526a50d128e18f869b3d283c1a09069e9

SHA512
cb79a70da1d32501ed647b69198804eb37774624910b97a600c0a07a0aacd54ca1eec6e42261e4df7f4590c746e573aae4ace775d21d22577d472cc31cdd5016

Download Submit
C:\Users\Public\vbc.exe
MD5
06904ee5e04abada43cb86d7a0457b5e

SHA1
749902ad199c0c1063ec0c0150db410f8579c54b

SHA256
3827b74e0bdab2de9236a5157690e90526a50d128e18f869b3d283c1a09069e9

SHA512
cb79a70da1d32501ed647b69198804eb37774624910b97a600c0a07a0aacd54ca1eec6e42261e4df7f4590c746e573aae4ace775d21d22577d472cc31cdd5016

Download Submit
\Users\Public\vbc.exe
MD5
06904ee5e04abada43cb86d7a0457b5e

SHA1
749902ad199c0c1063ec0c0150db410f8579c54b

SHA256
3827b74e0bdab2de9236a5157690e90526a50d128e18f869b3d283c1a09069e9

SHA512
cb79a70da1d32501ed647b69198804eb37774624910b97a600c0a07a0aacd54ca1eec6e42261e4df7f4590c746e573aae4ace775d21d22577d472cc31cdd5016

Download Submit
\Users\Public\vbc.exe
MD5
06904ee5e04abada43cb86d7a0457b5e

SHA1
749902ad199c0c1063ec0c0150db410f8579c54b

SHA256
3827b74e0bdab2de9236a5157690e90526a50d128e18f869b3d283c1a09069e9

SHA512
cb79a70da1d32501ed647b69198804eb37774624910b97a600c0a07a0aacd54ca1eec6e42261e4df7f4590c746e573aae4ace775d21d22577d472cc31cdd5016

Download Submit
\Users\Public\vbc.exe
MD5
06904ee5e04abada43cb86d7a0457b5e

SHA1
749902ad199c0c1063ec0c0150db410f8579c54b

SHA256
3827b74e0bdab2de9236a5157690e90526a50d128e18f869b3d283c1a09069e9

SHA512
cb79a70da1d32501ed647b69198804eb37774624910b97a600c0a07a0aacd54ca1eec6e42261e4df7f4590c746e573aae4ace775d21d22577d472cc31cdd5016

Download Submit
\Users\Public\vbc.exe
MD5
06904ee5e04abada43cb86d7a0457b5e

SHA1
749902ad199c0c1063ec0c0150db410f8579c54b

SHA256
3827b74e0bdab2de9236a5157690e90526a50d128e18f869b3d283c1a09069e9

SHA512
cb79a70da1d32501ed647b69198804eb37774624910b97a600c0a07a0aacd54ca1eec6e42261e4df7f4590c746e573aae4ace775d21d22577d472cc31cdd5016

Download Submit
memory/112-20-0x0000000000000000-mapping.dmp

Download
memory/428-19-0x0000000004BD0000-0x0000000004C25000-memory.dmp

Filesize
340KB

Download
memory/428-11-0x0000000000000000-mapping.dmp

Download
memory/428-14-0x000000006B540000-0x000000006BC2E000-memory.dmp

Filesize
6.9MB

Download
memory/428-15-0x0000000000200000-0x0000000000201000-memory.dmp

Filesize
4KB

Download
memory/428-17-0x00000000005B0000-0x00000000005D3000-memory.dmp

Filesize
140KB

Download
memory/428-18-0x0000000004B90000-0x0000000004B91000-memory.dmp

Filesize
4KB

Download
memory/1064-2-0x000000002F6D1000-0x000000002F6D4000-memory.dmp

Filesize
12KB

Download
memory/1064-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1064-3-0x0000000071001000-0x0000000071003000-memory.dmp

Filesize
8KB

Download
memory/1272-23-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1272-24-0x000000000041A684-mapping.dmp

Download
memory/1272-27-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1412-5-0x0000000076101000-0x0000000076103000-memory.dmp

Filesize
8KB

Download
memory/1508-6-0x000007FEF7140000-0x000007FEF73BA000-memory.dmp

Filesize
2.5MB

Download