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

resource	yara_rule
behavioral1/memory/2020-10-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2020-16-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2020-19-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2584-24-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader
behavioral1/memory/2584-26-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Deletes itself 1 IoCs

pid	Process
2440	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2140 set thread context of 2020	2140	IMG_38575943.exe	28
PID 2020 set thread context of 1368	2020	IMG_38575943.exe	21
PID 2020 set thread context of 1368	2020	IMG_38575943.exe	21
PID 2584 set thread context of 1368	2584	cmd.exe	21

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Toolbar	Explorer.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Toolbar\Locked = "1"	Explorer.EXE

Modifies registry class 26 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\{C4D98F09-6124-4FE0-9942-826416082DA9}\GroupByDirection = "1"	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags	Explorer.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\{C4D98F09-6124-4FE0-9942-826416082DA9}\GroupView = "0"	Explorer.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\{C4D98F09-6124-4FE0-9942-826416082DA9}\IconSize = "48"	Explorer.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	Explorer.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\{C4D98F09-6124-4FE0-9942-826416082DA9}\Rev = "0"	Explorer.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\{C4D98F09-6124-4FE0-9942-826416082DA9}\FFlags = "1092616193"	Explorer.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\{C4D98F09-6124-4FE0-9942-826416082DA9}\Vid = "{65F125E5-7BE1-4810-BA9D-D271C8432CE3}"	Explorer.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\{C4D98F09-6124-4FE0-9942-826416082DA9}\LogicalViewMode = "2"	Explorer.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\{C4D98F09-6124-4FE0-9942-826416082DA9}\GroupByKey:PID = "0"	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	Explorer.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	Explorer.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\{C4D98F09-6124-4FE0-9942-826416082DA9}\FFlags = "1092616209"	Explorer.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\{C4D98F09-6124-4FE0-9942-826416082DA9}\Sort = 000000000000000000000000000000000100000030f125b7ef471a10a5f102608c9eebac0a00000001000000	Explorer.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	Explorer.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\{C4D98F09-6124-4FE0-9942-826416082DA9}\Mode = "6"	Explorer.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\{C4D98F09-6124-4FE0-9942-826416082DA9}\ColInfo = 00000000000000000000000000000000fddfdffd100000000000000000000000040000001800000030f125b7ef471a10a5f102608c9eebac0a000000a000000030f125b7ef471a10a5f102608c9eebac0e0000007800000030f125b7ef471a10a5f102608c9eebac040000007800000030f125b7ef471a10a5f102608c9eebac0c00000050000000	Explorer.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\{C4D98F09-6124-4FE0-9942-826416082DA9}\GroupByKey:FMTID = "{00000000-0000-0000-0000-000000000000}"	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	Explorer.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = ffffffff	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\{C4D98F09-6124-4FE0-9942-826416082DA9}	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell	Explorer.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f4225481e03947bc34db131e946b44c8dd50000	Explorer.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\NodeSlot = "1"	Explorer.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
2020	IMG_38575943.exe
2020	IMG_38575943.exe
2020	IMG_38575943.exe
2584	cmd.exe
2584	cmd.exe
2584	cmd.exe
2584	cmd.exe
2584	cmd.exe
2584	cmd.exe
2584	cmd.exe
2584	cmd.exe
2584	cmd.exe
2584	cmd.exe
2584	cmd.exe
2584	cmd.exe
2584	cmd.exe
2584	cmd.exe
2584	cmd.exe
2584	cmd.exe
2584	cmd.exe
2584	cmd.exe
2584	cmd.exe
2584	cmd.exe
2584	cmd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1368	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2020	IMG_38575943.exe
2020	IMG_38575943.exe
2020	IMG_38575943.exe
2020	IMG_38575943.exe
2584	cmd.exe
2584	cmd.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2020	IMG_38575943.exe
Token: SeDebugPrivilege	2584	cmd.exe
Token: SeShutdownPrivilege	1368	Explorer.EXE
Token: SeShutdownPrivilege	1368	Explorer.EXE
Token: SeShutdownPrivilege	1368	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1368	Explorer.EXE
1368	Explorer.EXE

Suspicious use of SendNotifyMessage 12 IoCs

pid	Process
1368	Explorer.EXE
1368	Explorer.EXE
1368	Explorer.EXE
1368	Explorer.EXE
1368	Explorer.EXE
1368	Explorer.EXE
1368	Explorer.EXE
1368	Explorer.EXE
1368	Explorer.EXE
1368	Explorer.EXE
1368	Explorer.EXE
1368	Explorer.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1368	Explorer.EXE
1368	Explorer.EXE
1368	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2140 wrote to memory of 2020	2140	IMG_38575943.exe	28
PID 2140 wrote to memory of 2020	2140	IMG_38575943.exe	28
PID 2140 wrote to memory of 2020	2140	IMG_38575943.exe	28
PID 2140 wrote to memory of 2020	2140	IMG_38575943.exe	28
PID 2140 wrote to memory of 2020	2140	IMG_38575943.exe	28
PID 2140 wrote to memory of 2020	2140	IMG_38575943.exe	28
PID 2140 wrote to memory of 2020	2140	IMG_38575943.exe	28
PID 1368 wrote to memory of 2584	1368	Explorer.EXE	29
PID 1368 wrote to memory of 2584	1368	Explorer.EXE	29
PID 1368 wrote to memory of 2584	1368	Explorer.EXE	29
PID 1368 wrote to memory of 2584	1368	Explorer.EXE	29
PID 2584 wrote to memory of 2440	2584	cmd.exe	30
PID 2584 wrote to memory of 2440	2584	cmd.exe	30
PID 2584 wrote to memory of 2440	2584	cmd.exe	30
PID 2584 wrote to memory of 2440	2584	cmd.exe	30
PID 1368 wrote to memory of 2480	1368	Explorer.EXE	34
PID 1368 wrote to memory of 2480	1368	Explorer.EXE	34
PID 1368 wrote to memory of 2480	1368	Explorer.EXE	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1368
- 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:2140
- - 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:2020
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\SysWOW64\cmd.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2584
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\IMG_38575943.exe"
    3⤵
    - Deletes itself
    PID:2440
- C:\Windows\explorer.exe
  "C:\Windows\explorer.exe"
  2⤵
  PID:2480

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1368-15-0x0000000002F50000-0x0000000003050000-memory.dmp

Filesize
1024KB

Download
memory/1368-42-0x000007FEC28E0000-0x000007FEC28EA000-memory.dmp

Filesize
40KB

Download
memory/1368-41-0x000007FEF6330000-0x000007FEF6473000-memory.dmp

Filesize
1.3MB

Download
memory/1368-37-0x000007FEC28E0000-0x000007FEC28EA000-memory.dmp

Filesize
40KB

Download
memory/1368-36-0x000007FEF6330000-0x000007FEF6473000-memory.dmp

Filesize
1.3MB

Download
memory/1368-35-0x0000000006BD0000-0x0000000006CBD000-memory.dmp

Filesize
948KB

Download
memory/1368-32-0x00000000063D0000-0x00000000064F9000-memory.dmp

Filesize
1.2MB

Download
memory/1368-31-0x0000000006BD0000-0x0000000006CBD000-memory.dmp

Filesize
948KB

Download
memory/1368-30-0x0000000006BD0000-0x0000000006CBD000-memory.dmp

Filesize
948KB

Download
memory/1368-27-0x0000000002F50000-0x0000000003050000-memory.dmp

Filesize
1024KB

Download
memory/1368-21-0x00000000063D0000-0x00000000064F9000-memory.dmp

Filesize
1.2MB

Download
memory/1368-17-0x0000000004C00000-0x0000000004CB5000-memory.dmp

Filesize
724KB

Download
memory/2020-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2020-6-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2020-16-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2020-14-0x0000000000150000-0x0000000000161000-memory.dmp

Filesize
68KB

Download
memory/2020-19-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2020-13-0x00000000008F0000-0x0000000000BF3000-memory.dmp

Filesize
3.0MB

Download
memory/2020-20-0x00000000001A0000-0x00000000001B1000-memory.dmp

Filesize
68KB

Download
memory/2020-7-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2020-10-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2140-11-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/2140-1-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/2140-2-0x0000000004CE0000-0x0000000004D20000-memory.dmp

Filesize
256KB

Download
memory/2140-3-0x00000000003E0000-0x00000000003EC000-memory.dmp

Filesize
48KB

Download
memory/2140-4-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/2140-0-0x0000000000DE0000-0x0000000000E3C000-memory.dmp

Filesize
368KB

Download
memory/2140-5-0x0000000004500000-0x000000000455E000-memory.dmp

Filesize
376KB

Download
memory/2584-23-0x000000004A6F0000-0x000000004A73C000-memory.dmp

Filesize
304KB

Download
memory/2584-22-0x000000004A6F0000-0x000000004A73C000-memory.dmp

Filesize
304KB

Download
memory/2584-29-0x00000000022A0000-0x0000000002330000-memory.dmp

Filesize
576KB

Download
memory/2584-24-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/2584-26-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/2584-25-0x0000000002360000-0x0000000002663000-memory.dmp

Filesize
3.0MB

Download

Analysis

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