xloader | 50df1fc76a41a970a44ac40efdd0113c599a7091891dc13c25e78abe52a97158

General

Target

IMG_38575943.exe
Size

341KB
MD5

2a11ef715093c4429cd05dc3950c7f89
SHA1

3199e3c72fc349d9cce951c2c8830d88a8da4454
SHA256

50df1fc76a41a970a44ac40efdd0113c599a7091891dc13c25e78abe52a97158
SHA512

24f2d7a608d421258334144217e97dccdeb023d5e621774f213eda210a8937df0c7d12cfd02e8c96d5951011d6142a320ca3b40bedb8ac6ad5f95ccc6d3d2d0a
SSDEEP

6144:HqPwmYdAbc0C3LFDDOQmjUi0GL9jDAlPMKpPbd6j62AeI4KR0VoFtDFF7g:HqPwmYdAbc0CboQmjIGN6Pzd6j6/eWtU

Score

10^/10

xloader c6si loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

c6si

Decoy

tristateinc.construction

americanscaregroundstexas.com

kanimisoshiru.com

wihling.com

fishcheekstosa.com

parentsfuid.com

greenstandmarket.com

fc8fla8kzq.com

gametwist-83.club

jobsncvs.com

directrealtysells.com

avida2015.com

conceptasite.net

arkaneattire.com

indev-mobility.info

2160centurypark412.com

valefloor.com

septembership.com

stackflix.com

jimc0sales.net

Signatures

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

Xloader payload 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/2620-18-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2620-13-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2620-23-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1228-28-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader
behavioral1/memory/1228-30-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

312 cmd.exe

pid	process
312	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

IMG_38575943.exeIMG_38575943.exechkdsk.exe

description	pid	process	target process
PID 1656 set thread context of 2620	1656	IMG_38575943.exe	IMG_38575943.exe
PID 2620 set thread context of 1188	2620	IMG_38575943.exe	Explorer.EXE
PID 2620 set thread context of 1188	2620	IMG_38575943.exe	Explorer.EXE
PID 1228 set thread context of 1188	1228	chkdsk.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

Processes:

IMG_38575943.exechkdsk.exe

pid	process
2620	IMG_38575943.exe
2620	IMG_38575943.exe
2620	IMG_38575943.exe
1228	chkdsk.exe
1228	chkdsk.exe
1228	chkdsk.exe
1228	chkdsk.exe
1228	chkdsk.exe
1228	chkdsk.exe
1228	chkdsk.exe
1228	chkdsk.exe
1228	chkdsk.exe
1228	chkdsk.exe
1228	chkdsk.exe
1228	chkdsk.exe
1228	chkdsk.exe
1228	chkdsk.exe
1228	chkdsk.exe
1228	chkdsk.exe
1228	chkdsk.exe
1228	chkdsk.exe
1228	chkdsk.exe
1228	chkdsk.exe
1228	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

IMG_38575943.exechkdsk.exe

pid process

2620 IMG_38575943.exe
2620 IMG_38575943.exe
2620 IMG_38575943.exe
2620 IMG_38575943.exe
1228 chkdsk.exe
1228 chkdsk.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

IMG_38575943.exechkdsk.exe

description pid process

Token: SeDebugPrivilege 2620 IMG_38575943.exe
Token: SeDebugPrivilege 1228 chkdsk.exe

description	pid	process
Token: SeDebugPrivilege	2620	IMG_38575943.exe
Token: SeDebugPrivilege	1228	chkdsk.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

IMG_38575943.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 1656 wrote to memory of 2620	1656	IMG_38575943.exe	IMG_38575943.exe
PID 1656 wrote to memory of 2620	1656	IMG_38575943.exe	IMG_38575943.exe
PID 1656 wrote to memory of 2620	1656	IMG_38575943.exe	IMG_38575943.exe
PID 1656 wrote to memory of 2620	1656	IMG_38575943.exe	IMG_38575943.exe
PID 1656 wrote to memory of 2620	1656	IMG_38575943.exe	IMG_38575943.exe
PID 1656 wrote to memory of 2620	1656	IMG_38575943.exe	IMG_38575943.exe
PID 1656 wrote to memory of 2620	1656	IMG_38575943.exe	IMG_38575943.exe
PID 1188 wrote to memory of 1228	1188	Explorer.EXE	chkdsk.exe
PID 1188 wrote to memory of 1228	1188	Explorer.EXE	chkdsk.exe
PID 1188 wrote to memory of 1228	1188	Explorer.EXE	chkdsk.exe
PID 1188 wrote to memory of 1228	1188	Explorer.EXE	chkdsk.exe
PID 1228 wrote to memory of 312	1228	chkdsk.exe	cmd.exe
PID 1228 wrote to memory of 312	1228	chkdsk.exe	cmd.exe
PID 1228 wrote to memory of 312	1228	chkdsk.exe	cmd.exe
PID 1228 wrote to memory of 312	1228	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1188

C:\Users\Admin\AppData\Local\Temp\IMG_38575943.exe
"C:\Users\Admin\AppData\Local\Temp\IMG_38575943.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1656

C:\Users\Admin\AppData\Local\Temp\IMG_38575943.exe
"C:\Users\Admin\AppData\Local\Temp\IMG_38575943.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2620

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2464

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2568

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2352

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2348

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2372

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2404

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2424

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2472

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2776

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1456

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2780

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2888

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:3040

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2788

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2792

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2324

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:764

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2244

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:624

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2096

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:856

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1228

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\IMG_38575943.exe"
3⤵
- Deletes itself
PID:312

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/1188-40-0x00000000043B0000-0x0000000004445000-memory.dmp

Filesize
596KB

Download
memory/1188-25-0x00000000070E0000-0x0000000007262000-memory.dmp

Filesize
1.5MB

Download
memory/1188-34-0x00000000070E0000-0x0000000007262000-memory.dmp

Filesize
1.5MB

Download
memory/1188-36-0x00000000043B0000-0x0000000004445000-memory.dmp

Filesize
596KB

Download
memory/1188-37-0x00000000043B0000-0x0000000004445000-memory.dmp

Filesize
596KB

Download
memory/1188-20-0x0000000005070000-0x0000000005195000-memory.dmp

Filesize
1.1MB

Download
memory/1188-17-0x0000000003030000-0x0000000003130000-memory.dmp

Filesize
1024KB

Download
memory/1228-32-0x0000000002260000-0x00000000022F0000-memory.dmp

Filesize
576KB

Download
memory/1228-27-0x0000000000790000-0x0000000000797000-memory.dmp

Filesize
28KB

Download
memory/1228-28-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1228-26-0x0000000000790000-0x0000000000797000-memory.dmp

Filesize
28KB

Download
memory/1228-29-0x0000000002530000-0x0000000002833000-memory.dmp

Filesize
3.0MB

Download
memory/1228-30-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1656-2-0x0000000004FE0000-0x0000000005020000-memory.dmp

Filesize
256KB

Download
memory/1656-0-0x0000000001200000-0x000000000125C000-memory.dmp

Filesize
368KB

Download
memory/1656-3-0x0000000000930000-0x000000000093C000-memory.dmp

Filesize
48KB

Download
memory/1656-14-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/1656-1-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/1656-4-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/1656-5-0x0000000004FE0000-0x0000000005020000-memory.dmp

Filesize
256KB

Download
memory/1656-6-0x0000000000E00000-0x0000000000E5E000-memory.dmp

Filesize
376KB

Download
memory/2620-15-0x00000000009C0000-0x0000000000CC3000-memory.dmp

Filesize
3.0MB

Download
memory/2620-23-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2620-24-0x00000000001D0000-0x00000000001E1000-memory.dmp

Filesize
68KB

Download
memory/2620-7-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2620-9-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2620-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2620-13-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2620-19-0x0000000000190000-0x00000000001A1000-memory.dmp

Filesize
68KB

Download
memory/2620-18-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads