xloader | 4ea9973ca43d11271e1a72087a64a55d12e5dcd90a51e0ab9dd86652732b1560

General

Target

0. 20211019 Spec Samples Sheet/0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe
Size

673KB
MD5

4f669e786a4926722cbf1216dbb487d3
SHA1

87b699108881c6dbb4ba90c3c27ce81338f562b9
SHA256

0fe5396f1321fd696b415cb353e4b0d28c06168d2cbbae07bf9ff047accb9698
SHA512

8aa3ae09026b07ff82fffd94efdf2135f6a605cd0c65915ca46e8340cdce5b629a45431e4ddf271b4a177e7123863058c61889a9e342bef6c8827509189e6d46

Score

10^/10

xloader pufi loader rat suricata

Malware Config

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

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

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3956-124-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/3956-125-0x000000000041D450-mapping.dmp	xloader
behavioral2/memory/3892-133-0x00000000003B0000-0x00000000003D9000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

wscript.exe

flow pid process

66 3892 wscript.exe

flow	pid	process
66	3892	wscript.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exewscript.exe

description	pid	process	target process
PID 2096 set thread context of 3956	2096	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe
PID 3956 set thread context of 3008	3956	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe	Explorer.EXE
PID 3892 set thread context of 3008	3892	wscript.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exewscript.exe

pid	process
3956	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe
3956	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe
3956	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe
3956	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe
3892	wscript.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3008 Explorer.EXE

pid	process
3008	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exewscript.exe

pid	process
3956	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe
3956	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe
3956	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe
3892	wscript.exe
3892	wscript.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exewscript.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	3956	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe
Token: SeDebugPrivilege	3892	wscript.exe
Token: SeShutdownPrivilege	3008	Explorer.EXE
Token: SeCreatePagefilePrivilege	3008	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exeExplorer.EXEwscript.exe

description	pid	process	target process
PID 2096 wrote to memory of 3956	2096	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe
PID 2096 wrote to memory of 3956	2096	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe
PID 2096 wrote to memory of 3956	2096	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe
PID 2096 wrote to memory of 3956	2096	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe
PID 2096 wrote to memory of 3956	2096	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe
PID 2096 wrote to memory of 3956	2096	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe	0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe
PID 3008 wrote to memory of 3892	3008	Explorer.EXE	wscript.exe
PID 3008 wrote to memory of 3892	3008	Explorer.EXE	wscript.exe
PID 3008 wrote to memory of 3892	3008	Explorer.EXE	wscript.exe
PID 3892 wrote to memory of 3492	3892	wscript.exe	cmd.exe
PID 3892 wrote to memory of 3492	3892	wscript.exe	cmd.exe
PID 3892 wrote to memory of 3492	3892	wscript.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3008

C:\Users\Admin\AppData\Local\Temp\0. 20211019 Spec Samples Sheet\0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe
"C:\Users\Admin\AppData\Local\Temp\0. 20211019 Spec Samples Sheet\0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2096

C:\Users\Admin\AppData\Local\Temp\0. 20211019 Spec Samples Sheet\0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe
"C:\Users\Admin\AppData\Local\Temp\0. 20211019 Spec Samples Sheet\0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3956

C:\Windows\SysWOW64\wscript.exe
"C:\Windows\SysWOW64\wscript.exe"
2⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3892

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\0. 20211019 Spec Samples Sheet\0. 20211019 Spec Samples Sheet.xlsx (~674 KB).exe"
3⤵
PID:3492

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2096-117-0x0000000004F70000-0x0000000004F71000-memory.dmp

Filesize
4KB

Download
memory/2096-118-0x0000000004B10000-0x0000000004B11000-memory.dmp

Filesize
4KB

Download
memory/2096-119-0x0000000004A70000-0x0000000004F6E000-memory.dmp

Filesize
5.0MB

Download
memory/2096-120-0x0000000004AB0000-0x0000000004AB1000-memory.dmp

Filesize
4KB

Download
memory/2096-121-0x0000000005890000-0x0000000005897000-memory.dmp

Filesize
28KB

Download
memory/2096-122-0x00000000087C0000-0x00000000087C1000-memory.dmp

Filesize
4KB

Download
memory/2096-123-0x0000000008770000-0x00000000087BA000-memory.dmp

Filesize
296KB

Download
memory/2096-115-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/3008-129-0x0000000002C70000-0x0000000002D35000-memory.dmp

Filesize
788KB

Download
memory/3008-136-0x00000000053E0000-0x000000000556B000-memory.dmp

Filesize
1.5MB

Download
memory/3492-131-0x0000000000000000-mapping.dmp

Download
memory/3892-133-0x00000000003B0000-0x00000000003D9000-memory.dmp

Filesize
164KB

Download
memory/3892-130-0x0000000000000000-mapping.dmp

Download
memory/3892-132-0x0000000000B60000-0x0000000000B87000-memory.dmp

Filesize
156KB

Download
memory/3892-134-0x0000000004770000-0x0000000004A90000-memory.dmp

Filesize
3.1MB

Download
memory/3892-135-0x00000000045F0000-0x0000000004680000-memory.dmp

Filesize
576KB

Download
memory/3956-128-0x0000000000DF0000-0x0000000000E01000-memory.dmp

Filesize
68KB

Download
memory/3956-126-0x0000000001250000-0x0000000001570000-memory.dmp

Filesize
3.1MB

Download
memory/3956-125-0x000000000041D450-mapping.dmp

Download
memory/3956-124-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads