xloader | 2dcb33954614d11cded983267f1e67bab73b383f846170e34f54bb745b05b995

General

Target

E20210917ML-RFQ.exe
Size

631KB
MD5

4bb97838f22e7d33122a38105b252b9e
SHA1

770a4807a1e32a8fbb765e3540d54c30bdd5c131
SHA256

c507c6ca8c3d71feb2af8d83136736bd2407fef4a26c9e681426be5501d4742c
SHA512

fd23aa8b75501d5a09fcb6c8c4ac2bc7406e0a73a7dc0215b3a1de8a4a31a418bee21fc750335c9de4652e62a7a9a4a409bf110d9a1bc49df9318ab38ba08cb5

Score

10^/10

xloader a6er loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

a6er

C2

http://www.revivalgomghw.xyz/a6er/

Decoy

floetic.club

deepspotters.com

tibo-dev.tech

kcmade.xyz

haulseattle.com

ceroli-dolci.com

chenkaichuangke.com

citycloudconsulting.online

rusunmedical.com

ingeborg-art.com

asianm.art

private-clicks.com

metalcorpperu.com

beautifulingodseyes.com

phutungxenangnguoi.com

shots-photo.com

wirlessjuicers.com

sadyrossiiural.com

jiho9jye.xyz

molilii.com

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/2660-125-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/2660-126-0x000000000041D430-mapping.dmp	xloader
behavioral2/memory/428-133-0x0000000000870000-0x0000000000899000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

Processes:

E20210917ML-RFQ.exeE20210917ML-RFQ.exesvchost.exe

description	pid	process	target process
PID 2132 set thread context of 2660	2132	E20210917ML-RFQ.exe	E20210917ML-RFQ.exe
PID 2660 set thread context of 2648	2660	E20210917ML-RFQ.exe	Explorer.EXE
PID 428 set thread context of 2648	428	svchost.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 46 IoCs

Processes:

E20210917ML-RFQ.exesvchost.exe

pid	process
2660	E20210917ML-RFQ.exe
2660	E20210917ML-RFQ.exe
2660	E20210917ML-RFQ.exe
2660	E20210917ML-RFQ.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe
428	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2648 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

E20210917ML-RFQ.exesvchost.exe

pid process

2660 E20210917ML-RFQ.exe
2660 E20210917ML-RFQ.exe
2660 E20210917ML-RFQ.exe
428 svchost.exe
428 svchost.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

E20210917ML-RFQ.exesvchost.exe

description pid process

Token: SeDebugPrivilege 2660 E20210917ML-RFQ.exe
Token: SeDebugPrivilege 428 svchost.exe

pid	process
2648	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	2660	E20210917ML-RFQ.exe
Token: SeDebugPrivilege	428	svchost.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

E20210917ML-RFQ.exeExplorer.EXEsvchost.exe

description	pid	process	target process
PID 2132 wrote to memory of 2660	2132	E20210917ML-RFQ.exe	E20210917ML-RFQ.exe
PID 2132 wrote to memory of 2660	2132	E20210917ML-RFQ.exe	E20210917ML-RFQ.exe
PID 2132 wrote to memory of 2660	2132	E20210917ML-RFQ.exe	E20210917ML-RFQ.exe
PID 2132 wrote to memory of 2660	2132	E20210917ML-RFQ.exe	E20210917ML-RFQ.exe
PID 2132 wrote to memory of 2660	2132	E20210917ML-RFQ.exe	E20210917ML-RFQ.exe
PID 2132 wrote to memory of 2660	2132	E20210917ML-RFQ.exe	E20210917ML-RFQ.exe
PID 2648 wrote to memory of 428	2648	Explorer.EXE	svchost.exe
PID 2648 wrote to memory of 428	2648	Explorer.EXE	svchost.exe
PID 2648 wrote to memory of 428	2648	Explorer.EXE	svchost.exe
PID 428 wrote to memory of 448	428	svchost.exe	cmd.exe
PID 428 wrote to memory of 448	428	svchost.exe	cmd.exe
PID 428 wrote to memory of 448	428	svchost.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2648
- C:\Users\Admin\AppData\Local\Temp\E20210917ML-RFQ.exe
  "C:\Users\Admin\AppData\Local\Temp\E20210917ML-RFQ.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2132
- - C:\Users\Admin\AppData\Local\Temp\E20210917ML-RFQ.exe
    "C:\Users\Admin\AppData\Local\Temp\E20210917ML-RFQ.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2660
- C:\Windows\SysWOW64\svchost.exe
  "C:\Windows\SysWOW64\svchost.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:428
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\E20210917ML-RFQ.exe"
    3⤵
    PID:448

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/428-130-0x0000000000000000-mapping.dmp

Download
memory/428-135-0x0000000003010000-0x00000000030A0000-memory.dmp

Filesize
576KB

Download
memory/428-132-0x0000000001000000-0x000000000100C000-memory.dmp

Filesize
48KB

Download
memory/428-134-0x0000000003330000-0x0000000003650000-memory.dmp

Filesize
3.1MB

Download
memory/428-133-0x0000000000870000-0x0000000000899000-memory.dmp

Filesize
164KB

Download
memory/448-131-0x0000000000000000-mapping.dmp

Download
memory/2132-121-0x0000000008540000-0x0000000008541000-memory.dmp

Filesize
4KB

Download
memory/2132-115-0x0000000000760000-0x0000000000761000-memory.dmp

Filesize
4KB

Download
memory/2132-124-0x0000000008A90000-0x0000000008ABF000-memory.dmp

Filesize
188KB

Download
memory/2132-117-0x0000000005500000-0x0000000005501000-memory.dmp

Filesize
4KB

Download
memory/2132-118-0x00000000050A0000-0x00000000050A1000-memory.dmp

Filesize
4KB

Download
memory/2132-119-0x0000000005070000-0x0000000005071000-memory.dmp

Filesize
4KB

Download
memory/2132-120-0x0000000005000000-0x00000000054FE000-memory.dmp

Filesize
5.0MB

Download
memory/2132-123-0x0000000008A30000-0x0000000008A8F000-memory.dmp

Filesize
380KB

Download
memory/2132-122-0x0000000005390000-0x0000000005397000-memory.dmp

Filesize
28KB

Download
memory/2648-129-0x0000000006550000-0x000000000666A000-memory.dmp

Filesize
1.1MB

Download
memory/2648-136-0x0000000002E50000-0x0000000002F02000-memory.dmp

Filesize
712KB

Download
memory/2660-127-0x00000000010D0000-0x00000000013F0000-memory.dmp

Filesize
3.1MB

Download
memory/2660-128-0x0000000001090000-0x00000000010A1000-memory.dmp

Filesize
68KB

Download
memory/2660-126-0x000000000041D430-mapping.dmp

Download
memory/2660-125-0x0000000000400000-0x0000000000429000-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