xloader | 3bc7cbfbffcb2fe26936caceab37794a4c9b750d2afe9733d2885860d50727f1

General

Target

917479278d18fb239bb661f3960a821f.exe
Size

265KB
MD5

917479278d18fb239bb661f3960a821f
SHA1

b85df90355ffd75a29855e4488e306433ee8e035
SHA256

3bc7cbfbffcb2fe26936caceab37794a4c9b750d2afe9733d2885860d50727f1
SHA512

c8eb6d79f58fb060d5c019bd73014297ae4fcb6cc3350a74f2bbc96e98d5cd049f3874b4c5d83950b02f9cb116caeaccb8499fc3c8c50a2f761803def2a24535

Score

10^/10

xloader uar3 loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

uar3

Decoy

sgadvocats.com

mjscannabus.com

hilldaley.com

ksdollhouse.com

hotgiftboutique.com

purebloodsmeet.com

relaunched.info

cap-glove.com

productcollection.store

fulikyy.xyz

remoteaviationjobs.com

bestcleancrystal.com

virtualorganizationpartner.com

bookgocar.com

hattuafhv.quest

makonigroup.com

officecom-myaccount.com

malgorzata-lac.com

e-learningeducators.com

hygilaur.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 5 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3616-136-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/3616-142-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/3616-145-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/740-148-0x0000000001030000-0x0000000001059000-memory.dmp	xloader
behavioral2/memory/740-153-0x0000000001030000-0x0000000001059000-memory.dmp	xloader

Executes dropped EXE 2 IoCs

Processes:

rpaise.exerpaise.exe

pid process

2808 rpaise.exe
3616 rpaise.exe

pid	process
2808	rpaise.exe
3616	rpaise.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

rpaise.exerpaise.execmd.exe

description	pid	process	target process
PID 2808 set thread context of 3616	2808	rpaise.exe	rpaise.exe
PID 3616 set thread context of 3032	3616	rpaise.exe	Explorer.EXE
PID 3616 set thread context of 3032	3616	rpaise.exe	Explorer.EXE
PID 740 set thread context of 3032	740	cmd.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 60 IoCs

Processes:

rpaise.execmd.exe

pid	process
3616	rpaise.exe
3616	rpaise.exe
3616	rpaise.exe
3616	rpaise.exe
3616	rpaise.exe
3616	rpaise.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe
740	cmd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3032 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

rpaise.execmd.exe

pid process

3616 rpaise.exe
3616 rpaise.exe
3616 rpaise.exe
3616 rpaise.exe
740 cmd.exe
740 cmd.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

rpaise.execmd.exe

description pid process

Token: SeDebugPrivilege 3616 rpaise.exe
Token: SeDebugPrivilege 740 cmd.exe

pid	process
3032	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	3616	rpaise.exe
Token: SeDebugPrivilege	740	cmd.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

917479278d18fb239bb661f3960a821f.exerpaise.exerpaise.execmd.exe

description	pid	process	target process
PID 4436 wrote to memory of 2808	4436	917479278d18fb239bb661f3960a821f.exe	rpaise.exe
PID 4436 wrote to memory of 2808	4436	917479278d18fb239bb661f3960a821f.exe	rpaise.exe
PID 4436 wrote to memory of 2808	4436	917479278d18fb239bb661f3960a821f.exe	rpaise.exe
PID 2808 wrote to memory of 3616	2808	rpaise.exe	rpaise.exe
PID 2808 wrote to memory of 3616	2808	rpaise.exe	rpaise.exe
PID 2808 wrote to memory of 3616	2808	rpaise.exe	rpaise.exe
PID 2808 wrote to memory of 3616	2808	rpaise.exe	rpaise.exe
PID 2808 wrote to memory of 3616	2808	rpaise.exe	rpaise.exe
PID 2808 wrote to memory of 3616	2808	rpaise.exe	rpaise.exe
PID 3616 wrote to memory of 740	3616	rpaise.exe	cmd.exe
PID 3616 wrote to memory of 740	3616	rpaise.exe	cmd.exe
PID 3616 wrote to memory of 740	3616	rpaise.exe	cmd.exe
PID 740 wrote to memory of 3456	740	cmd.exe	cmd.exe
PID 740 wrote to memory of 3456	740	cmd.exe	cmd.exe
PID 740 wrote to memory of 3456	740	cmd.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
PID:3032

C:\Users\Admin\AppData\Local\Temp\917479278d18fb239bb661f3960a821f.exe
"C:\Users\Admin\AppData\Local\Temp\917479278d18fb239bb661f3960a821f.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:4436

C:\Users\Admin\AppData\Local\Temp\rpaise.exe
C:\Users\Admin\AppData\Local\Temp\rpaise.exe
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2808

C:\Users\Admin\AppData\Local\Temp\rpaise.exe
C:\Users\Admin\AppData\Local\Temp\rpaise.exe
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3616

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\SysWOW64\cmd.exe"
5⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:740

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\rpaise.exe"
6⤵
PID:3456

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:464

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:4272

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:436

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:4736

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\hu8td9yzk1kjm3cl7lp7
Filesize
213KB

MD5
a7ad4dcb67d4f5facf795967950ddec7

SHA1
d72735bb705b7354ed79a95ecb1baaa77924fa93

SHA256
7c15718892bb00067d3cb79c931d2c08f046df203a4aa03a7c3cdda4677ed5e8

SHA512
046af78b65b3e7664765c0924ac79e8f03182e9c35c57b8983d084ce190b1ab34d00ed3727e9bed315b3c2ada3024140e00dac62387f77daf8cbb59d88af64bb

Download Submit
C:\Users\Admin\AppData\Local\Temp\rnwtjeb
Filesize
4KB

MD5
8495553dafb39c9feaa5470bf449e73c

SHA1
53841c44343d2bc66a96eb9236854551a568ed40

SHA256
92429ea9fc92c180bed86632e42354d4f10985bee092fac672898ec71b5eef00

SHA512
b4c1ce526bf63662fa6105292273062cee495c2a13874f712c666ce8114160ee96c2c2ce84aebebfc8d8fda1412201e2e617fdbf240a918d94c2b9140f1cafcb

Download Submit
C:\Users\Admin\AppData\Local\Temp\rpaise.exe
Filesize
55KB

MD5
9c5faf3fe0cc6103f62962aac4ad642d

SHA1
a44ccc223163e125c527daab5ed3688303b2eb2e

SHA256
b6e3cae967e17270bf9eaaa7f5f74824a0130329bc6fed950dfe0973dd3df192

SHA512
dc8f6e30aedc0608dc522b6e720850b408615e498c562261c9b9a888ee22c644d757258215722a6a3beadb4653940b4ff134930bf2a7349ada937b9b042d9f12

Download Submit
C:\Users\Admin\AppData\Local\Temp\rpaise.exe
Filesize
55KB

MD5
9c5faf3fe0cc6103f62962aac4ad642d

SHA1
a44ccc223163e125c527daab5ed3688303b2eb2e

SHA256
b6e3cae967e17270bf9eaaa7f5f74824a0130329bc6fed950dfe0973dd3df192

SHA512
dc8f6e30aedc0608dc522b6e720850b408615e498c562261c9b9a888ee22c644d757258215722a6a3beadb4653940b4ff134930bf2a7349ada937b9b042d9f12

Download Submit
C:\Users\Admin\AppData\Local\Temp\rpaise.exe
Filesize
55KB

MD5
9c5faf3fe0cc6103f62962aac4ad642d

SHA1
a44ccc223163e125c527daab5ed3688303b2eb2e

SHA256
b6e3cae967e17270bf9eaaa7f5f74824a0130329bc6fed950dfe0973dd3df192

SHA512
dc8f6e30aedc0608dc522b6e720850b408615e498c562261c9b9a888ee22c644d757258215722a6a3beadb4653940b4ff134930bf2a7349ada937b9b042d9f12

Download Submit
memory/740-153-0x0000000001030000-0x0000000001059000-memory.dmp

Filesize
164KB

Download
memory/740-149-0x00000000019A0000-0x0000000001CEA000-memory.dmp

Filesize
3.3MB

Download
memory/740-151-0x0000000001730000-0x00000000017C0000-memory.dmp

Filesize
576KB

Download
memory/740-148-0x0000000001030000-0x0000000001059000-memory.dmp

Filesize
164KB

Download
memory/740-146-0x0000000000000000-mapping.dmp

Download
memory/740-147-0x0000000000C10000-0x0000000000C6A000-memory.dmp

Filesize
360KB

Download
memory/2808-130-0x0000000000000000-mapping.dmp

Download
memory/3032-154-0x0000000008B40000-0x0000000008C34000-memory.dmp

Filesize
976KB

Download
memory/3032-152-0x0000000008B40000-0x0000000008C34000-memory.dmp

Filesize
976KB

Download
memory/3032-141-0x00000000085B0000-0x0000000008664000-memory.dmp

Filesize
720KB

Download
memory/3032-144-0x0000000008A80000-0x0000000008B37000-memory.dmp

Filesize
732KB

Download
memory/3456-150-0x0000000000000000-mapping.dmp

Download
memory/3616-136-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3616-145-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3616-143-0x0000000000930000-0x0000000000941000-memory.dmp

Filesize
68KB

Download
memory/3616-142-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3616-140-0x00000000006C0000-0x00000000006D1000-memory.dmp

Filesize
68KB

Download
memory/3616-139-0x00000000009E0000-0x0000000000D2A000-memory.dmp

Filesize
3.3MB

Download
memory/3616-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads