xloader | 9ed84f9f973b347f43b51d079a97623f4cc9f6d5a7b793e1593f26207101af3c

General

Target

winlog.exe
Size

696KB
MD5

5d2f26ac6b48725279d98aa87eff8506
SHA1

7ab3874eb9d316a503133367b12d3628e6dbe264
SHA256

06bed76c389db454d5b86a64bf7127a21c013b48d79b3b83511263c424f5cf65
SHA512

e81c607ee870bde0e5a84714f1634e19f6959d1f46a4d5ffea2baeba241712ca4f2e2bdf4f6c8794db7b35216ded5d52743b7faac75d3382dd58f88e24294e41

Score

10^/10

xloader loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

C2

http://www.zlzntiayc.icu/a6ru/

Decoy

noseainsight.com

chateaudedigoine.com

tezhonda.com

lowergwyeneddmassage.com

convenienttext.com

quickbookaccountingpros.com

mashburneventcenter.com

marthabymsfashion.com

thearcadela.com

invisiblefingerprint.com

nikadoo.com

artsmartclinton.com

elitetouringinnovations.com

atualizarapp2020.com

nideke1.com

fyj-sh.com

rufflesales.com

algemixdelchef.com

appleoneplus.com

ryosuketanikawa.com

Signatures

Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1456-67-0x000000000041D0C0-mapping.dmp	xloader
behavioral1/memory/1456-66-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/552-78-0x0000000000090000-0x00000000000B9000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1312 cmd.exe

pid	process
1312	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

winlog.exewinlog.execmstp.exe

description	pid	process	target process
PID 784 set thread context of 1456	784	winlog.exe	winlog.exe
PID 1456 set thread context of 1180	1456	winlog.exe	Explorer.EXE
PID 1456 set thread context of 1180	1456	winlog.exe	Explorer.EXE
PID 552 set thread context of 1180	552	cmstp.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

winlog.execmstp.exe

pid process

1456 winlog.exe
1456 winlog.exe
1456 winlog.exe
552 cmstp.exe
552 cmstp.exe
552 cmstp.exe
552 cmstp.exe
552 cmstp.exe
552 cmstp.exe
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

winlog.execmstp.exe

pid process

1456 winlog.exe
1456 winlog.exe
1456 winlog.exe
1456 winlog.exe
552 cmstp.exe
552 cmstp.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

winlog.execmstp.exe

description pid process

Token: SeDebugPrivilege 1456 winlog.exe
Token: SeDebugPrivilege 552 cmstp.exe

pid	process
1456	winlog.exe
1456	winlog.exe
1456	winlog.exe
552	cmstp.exe
552	cmstp.exe
552	cmstp.exe
552	cmstp.exe
552	cmstp.exe
552	cmstp.exe

pid	process
1456	winlog.exe
1456	winlog.exe
1456	winlog.exe
1456	winlog.exe
552	cmstp.exe
552	cmstp.exe

description	pid	process
Token: SeDebugPrivilege	1456	winlog.exe
Token: SeDebugPrivilege	552	cmstp.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

winlog.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 784 wrote to memory of 1456	784	winlog.exe	winlog.exe
PID 784 wrote to memory of 1456	784	winlog.exe	winlog.exe
PID 784 wrote to memory of 1456	784	winlog.exe	winlog.exe
PID 784 wrote to memory of 1456	784	winlog.exe	winlog.exe
PID 784 wrote to memory of 1456	784	winlog.exe	winlog.exe
PID 784 wrote to memory of 1456	784	winlog.exe	winlog.exe
PID 784 wrote to memory of 1456	784	winlog.exe	winlog.exe
PID 1180 wrote to memory of 552	1180	Explorer.EXE	cmstp.exe
PID 1180 wrote to memory of 552	1180	Explorer.EXE	cmstp.exe
PID 1180 wrote to memory of 552	1180	Explorer.EXE	cmstp.exe
PID 1180 wrote to memory of 552	1180	Explorer.EXE	cmstp.exe
PID 1180 wrote to memory of 552	1180	Explorer.EXE	cmstp.exe
PID 1180 wrote to memory of 552	1180	Explorer.EXE	cmstp.exe
PID 1180 wrote to memory of 552	1180	Explorer.EXE	cmstp.exe
PID 552 wrote to memory of 1312	552	cmstp.exe	cmd.exe
PID 552 wrote to memory of 1312	552	cmstp.exe	cmd.exe
PID 552 wrote to memory of 1312	552	cmstp.exe	cmd.exe
PID 552 wrote to memory of 1312	552	cmstp.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1180

C:\Users\Admin\AppData\Local\Temp\winlog.exe
"C:\Users\Admin\AppData\Local\Temp\winlog.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:784

C:\Users\Admin\AppData\Local\Temp\winlog.exe
"C:\Users\Admin\AppData\Local\Temp\winlog.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1456

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:420

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:552

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\winlog.exe"
3⤵
- Deletes itself
PID:1312

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/552-74-0x0000000000000000-mapping.dmp

Download
memory/552-78-0x0000000000090000-0x00000000000B9000-memory.dmp

Filesize
164KB

Download
memory/552-80-0x0000000001DA0000-0x0000000001E2F000-memory.dmp

Filesize
572KB

Download
memory/552-77-0x0000000000660000-0x0000000000678000-memory.dmp

Filesize
96KB

Download
memory/552-75-0x0000000075211000-0x0000000075213000-memory.dmp

Filesize
8KB

Download
memory/552-79-0x0000000001F30000-0x0000000002233000-memory.dmp

Filesize
3.0MB

Download
memory/784-62-0x0000000004B50000-0x0000000004B51000-memory.dmp

Filesize
4KB

Download
memory/784-63-0x0000000000940000-0x000000000094E000-memory.dmp

Filesize
56KB

Download
memory/784-64-0x0000000004D40000-0x0000000004DB7000-memory.dmp

Filesize
476KB

Download
memory/784-65-0x0000000000BE0000-0x0000000000C10000-memory.dmp

Filesize
192KB

Download
memory/784-60-0x0000000000D50000-0x0000000000D51000-memory.dmp

Filesize
4KB

Download
memory/1180-81-0x0000000004DF0000-0x0000000004F55000-memory.dmp

Filesize
1.4MB

Download
memory/1180-73-0x0000000004C60000-0x0000000004D3A000-memory.dmp

Filesize
872KB

Download
memory/1180-71-0x0000000004970000-0x0000000004AAF000-memory.dmp

Filesize
1.2MB

Download
memory/1312-76-0x0000000000000000-mapping.dmp

Download
memory/1456-67-0x000000000041D0C0-mapping.dmp

Download
memory/1456-72-0x0000000000220000-0x0000000000230000-memory.dmp

Filesize
64KB

Download
memory/1456-70-0x0000000000160000-0x0000000000170000-memory.dmp

Filesize
64KB

Download
memory/1456-69-0x00000000008C0000-0x0000000000BC3000-memory.dmp

Filesize
3.0MB

Download
memory/1456-66-0x0000000000400000-0x0000000000429000-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