xloader | af2b21a69de30c1e874d99bf4f2780a28385eafcb57f48598714019e7504cfec

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 4 IoCs

rat

resource	yara_rule
behavioral4/memory/4040-12-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral4/memory/4040-17-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral4/memory/4284-23-0x0000000000B90000-0x0000000000BB9000-memory.dmp	xloader
behavioral4/memory/4284-25-0x0000000000B90000-0x0000000000BB9000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1312 set thread context of 4040	1312	IMG_38575943.exe	100
PID 4040 set thread context of 3364	4040	IMG_38575943.exe	57
PID 4284 set thread context of 3364	4284	raserver.exe	57

Suspicious behavior: EnumeratesProcesses 44 IoCs

pid	Process
1312	IMG_38575943.exe
1312	IMG_38575943.exe
4040	IMG_38575943.exe
4040	IMG_38575943.exe
4040	IMG_38575943.exe
4040	IMG_38575943.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe
4284	raserver.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4040	IMG_38575943.exe
4040	IMG_38575943.exe
4040	IMG_38575943.exe
4284	raserver.exe
4284	raserver.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1312	IMG_38575943.exe
Token: SeDebugPrivilege	4040	IMG_38575943.exe
Token: SeDebugPrivilege	4284	raserver.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1312 wrote to memory of 4920	1312	IMG_38575943.exe	99
PID 1312 wrote to memory of 4920	1312	IMG_38575943.exe	99
PID 1312 wrote to memory of 4920	1312	IMG_38575943.exe	99
PID 1312 wrote to memory of 4040	1312	IMG_38575943.exe	100
PID 1312 wrote to memory of 4040	1312	IMG_38575943.exe	100
PID 1312 wrote to memory of 4040	1312	IMG_38575943.exe	100
PID 1312 wrote to memory of 4040	1312	IMG_38575943.exe	100
PID 1312 wrote to memory of 4040	1312	IMG_38575943.exe	100
PID 1312 wrote to memory of 4040	1312	IMG_38575943.exe	100
PID 3364 wrote to memory of 4284	3364	Explorer.EXE	101
PID 3364 wrote to memory of 4284	3364	Explorer.EXE	101
PID 3364 wrote to memory of 4284	3364	Explorer.EXE	101
PID 4284 wrote to memory of 1048	4284	raserver.exe	102
PID 4284 wrote to memory of 1048	4284	raserver.exe	102
PID 4284 wrote to memory of 1048	4284	raserver.exe	102

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3364
- C:\Users\Admin\AppData\Local\Temp\IMG_38575943.exe
  "C:\Users\Admin\AppData\Local\Temp\IMG_38575943.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1312
- - C:\Users\Admin\AppData\Local\Temp\IMG_38575943.exe
    "C:\Users\Admin\AppData\Local\Temp\IMG_38575943.exe"
    3⤵
    PID:4920
- - 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:4040
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4284
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\IMG_38575943.exe"
    3⤵
    PID:1048

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3760 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8
1⤵
PID:1256

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1312-8-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/1312-2-0x00000000057C0000-0x0000000005D64000-memory.dmp

Filesize
5.6MB

Download
memory/1312-9-0x00000000051F0000-0x0000000005200000-memory.dmp

Filesize
64KB

Download
memory/1312-10-0x0000000006BD0000-0x0000000006C6C000-memory.dmp

Filesize
624KB

Download
memory/1312-4-0x00000000051F0000-0x0000000005200000-memory.dmp

Filesize
64KB

Download
memory/1312-5-0x00000000051A0000-0x00000000051AA000-memory.dmp

Filesize
40KB

Download
memory/1312-6-0x0000000005420000-0x000000000542C000-memory.dmp

Filesize
48KB

Download
memory/1312-7-0x0000000006860000-0x00000000068AC000-memory.dmp

Filesize
304KB

Download
memory/1312-0-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/1312-1-0x0000000000750000-0x00000000007AC000-memory.dmp

Filesize
368KB

Download
memory/1312-3-0x0000000005210000-0x00000000052A2000-memory.dmp

Filesize
584KB

Download
memory/1312-11-0x0000000006D10000-0x0000000006D6E000-memory.dmp

Filesize
376KB

Download
memory/1312-14-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/3364-35-0x0000000009350000-0x00000000094A1000-memory.dmp

Filesize
1.3MB

Download
memory/3364-19-0x000000000C140000-0x000000000C2DD000-memory.dmp

Filesize
1.6MB

Download
memory/3364-32-0x0000000009350000-0x00000000094A1000-memory.dmp

Filesize
1.3MB

Download
memory/3364-31-0x0000000009350000-0x00000000094A1000-memory.dmp

Filesize
1.3MB

Download
memory/3364-28-0x000000000C140000-0x000000000C2DD000-memory.dmp

Filesize
1.6MB

Download
memory/4040-15-0x0000000001920000-0x0000000001C6A000-memory.dmp

Filesize
3.3MB

Download
memory/4040-18-0x0000000001800000-0x0000000001811000-memory.dmp

Filesize
68KB

Download
memory/4040-17-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4040-12-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4284-22-0x00000000009B0000-0x00000000009CF000-memory.dmp

Filesize
124KB

Download
memory/4284-23-0x0000000000B90000-0x0000000000BB9000-memory.dmp

Filesize
164KB

Download
memory/4284-24-0x0000000002DF0000-0x000000000313A000-memory.dmp

Filesize
3.3MB

Download
memory/4284-25-0x0000000000B90000-0x0000000000BB9000-memory.dmp

Filesize
164KB

Download
memory/4284-27-0x0000000002B20000-0x0000000002BB0000-memory.dmp

Filesize
576KB

Download
memory/4284-20-0x00000000009B0000-0x00000000009CF000-memory.dmp

Filesize
124KB

Download

Analysis

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