nloader | 49e315aa89bf10972518c3069a767c869bbf7027c298afd11ab21040285b3f9e

General

Target

cancel_sub_JPL12345678901234.xlsb
Size

260KB
MD5

80fdec003c86c583473a9fbbabf40d2f
SHA1

991940040a50a0be56572e4a9ab73d6d4dbab050
SHA256

49e315aa89bf10972518c3069a767c869bbf7027c298afd11ab21040285b3f9e
SHA512

022475db6593d15bdcc1411f7c3b88a8822311f621506401ad3ba33ddc2a52ae6e97e4357e3742bf59ef287c033f5363cb5d2021be793d5552a3a8b73b85cfa5

Score

10^/10

nloader loader

Malware Config

Extracted

Language

xlm4.0

Source

Signatures

Nloader
Simple loader that includes the keyword 'campo' in the URL used to download other families.
loader nloader

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

cmd.exe

description	pid	pid_target	process	target process
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	464	296	cmd.exe	EXCEL.EXE

Nloader Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2028-70-0x0000000000170000-0x0000000000175000-memory.dmp	nloader

Blocklisted process makes network request 1 IoCs

Processes:

rundll32.exe

flow pid process

6 2028 rundll32.exe
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

2028 rundll32.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

flow	pid	process
6	2028	rundll32.exe

pid	process
2028	rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

296 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

296 EXCEL.EXE
296 EXCEL.EXE
296 EXCEL.EXE

pid	process
296	EXCEL.EXE

pid	process
296	EXCEL.EXE
296	EXCEL.EXE
296	EXCEL.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 296 wrote to memory of 464	296	EXCEL.EXE	cmd.exe
PID 296 wrote to memory of 464	296	EXCEL.EXE	cmd.exe
PID 296 wrote to memory of 464	296	EXCEL.EXE	cmd.exe
PID 296 wrote to memory of 464	296	EXCEL.EXE	cmd.exe
PID 464 wrote to memory of 1112	464	cmd.exe	certutil.exe
PID 464 wrote to memory of 1112	464	cmd.exe	certutil.exe
PID 464 wrote to memory of 1112	464	cmd.exe	certutil.exe
PID 464 wrote to memory of 1112	464	cmd.exe	certutil.exe
PID 464 wrote to memory of 2028	464	cmd.exe	rundll32.exe
PID 464 wrote to memory of 2028	464	cmd.exe	rundll32.exe
PID 464 wrote to memory of 2028	464	cmd.exe	rundll32.exe
PID 464 wrote to memory of 2028	464	cmd.exe	rundll32.exe
PID 464 wrote to memory of 2028	464	cmd.exe	rundll32.exe
PID 464 wrote to memory of 2028	464	cmd.exe	rundll32.exe
PID 464 wrote to memory of 2028	464	cmd.exe	rundll32.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\cancel_sub_JPL12345678901234.xlsb
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:296

C:\Windows\SysWOW64\cmd.exe
cmd /c certutil -decode C:\Users\Public\5015.x1 C:\Users\Public\5015.x2 && rundll32 C:\Users\Public\5015.x2,DF1
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:464

C:\Windows\SysWOW64\certutil.exe
certutil -decode C:\Users\Public\5015.x1 C:\Users\Public\5015.x2
3⤵
PID:1112

C:\Windows\SysWOW64\rundll32.exe
rundll32 C:\Users\Public\5015.x2,DF1
3⤵
- Blocklisted process makes network request
- Loads dropped DLL
PID:2028

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

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\5015.x1

MD5
a672fabfad26761c82a6e31ea1f7f526

SHA1
7dbc53989e22c6a6bf706f8de54160ad9816ac9e

SHA256
3421236336d47f923ac96d8fdb09e264832d7effbe812c3327121ae9204f3499

SHA512
ddf6e292d73af766d2ffa2901567f9c0c371e043d9aa4731bae7b5d406ea7a18e9327fbbd5e9c7fbeb81192f8ace07351dea582943d2de775e82a9cafe120537

Download Submit
C:\Users\Public\5015.x2

MD5
6f93afeceddee05dae2861174ce572f4

SHA1
74a06b937e7dc4c7ce9885aefdad168e2bf1928b

SHA256
700c37ba983091ec219545a746bf9481a4ebe23bbe4f65c41fe8185d1a3a96b4

SHA512
b8080cda7f7c827a16c5f0676e3d248a67d5a686b2a1a9461bc1a0e117961320f225a615b2ad9f2f8dc6585b7b6c1fab0df948ec1092a4883f4f29ebfc0493f7

Download Submit
\Users\Public\5015.x2

MD5
6f93afeceddee05dae2861174ce572f4

SHA1
74a06b937e7dc4c7ce9885aefdad168e2bf1928b

SHA256
700c37ba983091ec219545a746bf9481a4ebe23bbe4f65c41fe8185d1a3a96b4

SHA512
b8080cda7f7c827a16c5f0676e3d248a67d5a686b2a1a9461bc1a0e117961320f225a615b2ad9f2f8dc6585b7b6c1fab0df948ec1092a4883f4f29ebfc0493f7

Download Submit
memory/296-59-0x000000002F621000-0x000000002F624000-memory.dmp

Filesize
12KB

Download
memory/296-60-0x0000000070F51000-0x0000000070F53000-memory.dmp

Filesize
8KB

Download
memory/296-61-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/464-62-0x0000000000000000-mapping.dmp

Download
memory/1112-63-0x0000000000000000-mapping.dmp

Download
memory/1112-64-0x00000000757E1000-0x00000000757E3000-memory.dmp

Filesize
8KB

Download
memory/2028-66-0x0000000000000000-mapping.dmp

Download
memory/2028-70-0x0000000000170000-0x0000000000175000-memory.dmp

Filesize
20KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads