xloader | b4a7371bb84b4f72e390e8f247a7978f2c2ff173d555261442151ef918cdb969

General

Target

ur0Wh1IXZqT3XDP.exe
Size

495KB
MD5

389205cb7d0e4aff8ced73933cb8c540
SHA1

7feda5387f15dd58f5479184c698811fd829604e
SHA256

b4a7371bb84b4f72e390e8f247a7978f2c2ff173d555261442151ef918cdb969
SHA512

0ef5eb7aec2c239ba58ede1149874f2e4795ef33edad824e289d37c9b7bf639262306ac569be8b832c69a90eaabb3bda812efc009fb2a9b11eb41cc21cfb7703

Score

10^/10

xloader zzun loader persistence rat spyware stealer suricata

Malware Config

Extracted

Family

xloader

Version

2.9

Campaign

zzun

Decoy

JnNtRHyNupy0GqRzAcasu7hb4rc=

Qv593NGLE7p9UNSaVkPXljAJm2QCNnc=

ePArIFWvjkkMgVEVhw4M4Jk=

26rqUwJ7dD0AiDI=

pBAxMHeK741QFw==

kHD7TPt5846pUMTX

56UnjFjHL1i0j659h3LymRnHpQj+SshC

4vKlKHflPqmWXRbrRwfPtrhb4rc=

6LBd4qButFAi

phMzGll8Ue7Fu+inq5cdnPaSugG3

NKswiQGCvZoG5FgsdHEI

rtTHnuUY8M1qVcXV

SOmECrlAt2oGAA==

L1ep9adutFAi

/UE+/AyvE6uEl28weFI=

IP+xMPQxJR4NE6TK

xvW5GN9/rqA5YUoOVt185Sf7Uw==

fRFNW9DhxL6VF7LA

KFYTfkaY741QFw==

W4JGvMBmt2oGAA==

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 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/2252-136-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/2252-138-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/3784-144-0x00000000004E0000-0x000000000050C000-memory.dmp	xloader
behavioral2/memory/3784-149-0x00000000004E0000-0x000000000050C000-memory.dmp	xloader

Executes dropped EXE 1 IoCs

Processes:

q0ml_rrhhrsd.exe

pid process

2712 q0ml_rrhhrsd.exe

pid	process
2712	q0ml_rrhhrsd.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

ur0Wh1IXZqT3XDP.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Control Panel\International\Geo\Nation	ur0Wh1IXZqT3XDP.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ELRLRFWPJXG = "C:\\Program Files (x86)\\Ri4d\\q0ml_rrhhrsd.exe"	msiexec.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

ur0Wh1IXZqT3XDP.exeur0Wh1IXZqT3XDP.exemsiexec.exe

description	pid	process	target process
PID 3168 set thread context of 2252	3168	ur0Wh1IXZqT3XDP.exe	ur0Wh1IXZqT3XDP.exe
PID 2252 set thread context of 2768	2252	ur0Wh1IXZqT3XDP.exe	Explorer.EXE
PID 3784 set thread context of 2768	3784	msiexec.exe	Explorer.EXE

Drops file in Program Files directory 4 IoCs

Processes:

Explorer.EXEmsiexec.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Ri4d	Explorer.EXE
File created	C:\Program Files (x86)\Ri4d\q0ml_rrhhrsd.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\Ri4d\q0ml_rrhhrsd.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\Ri4d\q0ml_rrhhrsd.exe	msiexec.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2660308776-3705150086-26593515-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	msiexec.exe

Suspicious behavior: EnumeratesProcesses 46 IoCs

Processes:

ur0Wh1IXZqT3XDP.exemsiexec.exe

pid	process
2252	ur0Wh1IXZqT3XDP.exe
2252	ur0Wh1IXZqT3XDP.exe
2252	ur0Wh1IXZqT3XDP.exe
2252	ur0Wh1IXZqT3XDP.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe
3784	msiexec.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2768 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

ur0Wh1IXZqT3XDP.exemsiexec.exe

pid process

2252 ur0Wh1IXZqT3XDP.exe
2252 ur0Wh1IXZqT3XDP.exe
2252 ur0Wh1IXZqT3XDP.exe
3784 msiexec.exe
3784 msiexec.exe
3784 msiexec.exe
3784 msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ur0Wh1IXZqT3XDP.exemsiexec.exe

description pid process

Token: SeDebugPrivilege 2252 ur0Wh1IXZqT3XDP.exe
Token: SeDebugPrivilege 3784 msiexec.exe

pid	process
2768	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	2252	ur0Wh1IXZqT3XDP.exe
Token: SeDebugPrivilege	3784	msiexec.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

ur0Wh1IXZqT3XDP.exeExplorer.EXEmsiexec.exe

description	pid	process	target process
PID 3168 wrote to memory of 2252	3168	ur0Wh1IXZqT3XDP.exe	ur0Wh1IXZqT3XDP.exe
PID 3168 wrote to memory of 2252	3168	ur0Wh1IXZqT3XDP.exe	ur0Wh1IXZqT3XDP.exe
PID 3168 wrote to memory of 2252	3168	ur0Wh1IXZqT3XDP.exe	ur0Wh1IXZqT3XDP.exe
PID 3168 wrote to memory of 2252	3168	ur0Wh1IXZqT3XDP.exe	ur0Wh1IXZqT3XDP.exe
PID 3168 wrote to memory of 2252	3168	ur0Wh1IXZqT3XDP.exe	ur0Wh1IXZqT3XDP.exe
PID 3168 wrote to memory of 2252	3168	ur0Wh1IXZqT3XDP.exe	ur0Wh1IXZqT3XDP.exe
PID 2768 wrote to memory of 3784	2768	Explorer.EXE	msiexec.exe
PID 2768 wrote to memory of 3784	2768	Explorer.EXE	msiexec.exe
PID 2768 wrote to memory of 3784	2768	Explorer.EXE	msiexec.exe
PID 3784 wrote to memory of 4300	3784	msiexec.exe	cmd.exe
PID 3784 wrote to memory of 4300	3784	msiexec.exe	cmd.exe
PID 3784 wrote to memory of 4300	3784	msiexec.exe	cmd.exe
PID 3784 wrote to memory of 1236	3784	msiexec.exe	cmd.exe
PID 3784 wrote to memory of 1236	3784	msiexec.exe	cmd.exe
PID 3784 wrote to memory of 1236	3784	msiexec.exe	cmd.exe
PID 3784 wrote to memory of 4272	3784	msiexec.exe	cmd.exe
PID 3784 wrote to memory of 4272	3784	msiexec.exe	cmd.exe
PID 3784 wrote to memory of 4272	3784	msiexec.exe	cmd.exe
PID 3784 wrote to memory of 3296	3784	msiexec.exe	Firefox.exe
PID 3784 wrote to memory of 3296	3784	msiexec.exe	Firefox.exe
PID 2768 wrote to memory of 2712	2768	Explorer.EXE	q0ml_rrhhrsd.exe
PID 2768 wrote to memory of 2712	2768	Explorer.EXE	q0ml_rrhhrsd.exe
PID 2768 wrote to memory of 2712	2768	Explorer.EXE	q0ml_rrhhrsd.exe
PID 3784 wrote to memory of 3296	3784	msiexec.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Drops file in Program Files directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2768

C:\Users\Admin\AppData\Local\Temp\ur0Wh1IXZqT3XDP.exe
"C:\Users\Admin\AppData\Local\Temp\ur0Wh1IXZqT3XDP.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3168

C:\Users\Admin\AppData\Local\Temp\ur0Wh1IXZqT3XDP.exe
"{path}"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2252

C:\Windows\SysWOW64\msiexec.exe
"C:\Windows\SysWOW64\msiexec.exe"
2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3784

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\ur0Wh1IXZqT3XDP.exe"
3⤵
PID:4300

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:1236

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:4272

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:3296

C:\Program Files (x86)\Ri4d\q0ml_rrhhrsd.exe
"C:\Program Files (x86)\Ri4d\q0ml_rrhhrsd.exe"
2⤵
- Executes dropped EXE
PID:2712

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Program Files (x86)\Ri4d\q0ml_rrhhrsd.exe
Filesize
495KB

MD5
389205cb7d0e4aff8ced73933cb8c540

SHA1
7feda5387f15dd58f5479184c698811fd829604e

SHA256
b4a7371bb84b4f72e390e8f247a7978f2c2ff173d555261442151ef918cdb969

SHA512
0ef5eb7aec2c239ba58ede1149874f2e4795ef33edad824e289d37c9b7bf639262306ac569be8b832c69a90eaabb3bda812efc009fb2a9b11eb41cc21cfb7703

Download Submit
C:\Program Files (x86)\Ri4d\q0ml_rrhhrsd.exe
Filesize
495KB

MD5
389205cb7d0e4aff8ced73933cb8c540

SHA1
7feda5387f15dd58f5479184c698811fd829604e

SHA256
b4a7371bb84b4f72e390e8f247a7978f2c2ff173d555261442151ef918cdb969

SHA512
0ef5eb7aec2c239ba58ede1149874f2e4795ef33edad824e289d37c9b7bf639262306ac569be8b832c69a90eaabb3bda812efc009fb2a9b11eb41cc21cfb7703

Download Submit
C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
40KB

MD5
b608d407fc15adea97c26936bc6f03f6

SHA1
953e7420801c76393902c0d6bb56148947e41571

SHA256
b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

SHA512
cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

Download Submit
C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
48KB

MD5
349e6eb110e34a08924d92f6b334801d

SHA1
bdfb289daff51890cc71697b6322aa4b35ec9169

SHA256
c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a

SHA512
2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574

Download Submit
memory/1236-151-0x0000000000000000-mapping.dmp

Download
memory/2252-136-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2252-135-0x0000000000000000-mapping.dmp

Download
memory/2252-138-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2252-139-0x00000000016F0000-0x0000000001A3A000-memory.dmp

Filesize
3.3MB

Download
memory/2252-140-0x0000000001270000-0x0000000001281000-memory.dmp

Filesize
68KB

Download
memory/2712-155-0x0000000000000000-mapping.dmp

Download
memory/2768-141-0x0000000008040000-0x00000000081E1000-memory.dmp

Filesize
1.6MB

Download
memory/2768-150-0x0000000006E90000-0x0000000006F81000-memory.dmp

Filesize
964KB

Download
memory/2768-148-0x0000000006E90000-0x0000000006F81000-memory.dmp

Filesize
964KB

Download
memory/3168-134-0x00000000054D0000-0x00000000054DA000-memory.dmp

Filesize
40KB

Download
memory/3168-130-0x0000000000870000-0x00000000008F2000-memory.dmp

Filesize
520KB

Download
memory/3168-133-0x0000000005230000-0x00000000052CC000-memory.dmp

Filesize
624KB

Download
memory/3168-132-0x0000000005190000-0x0000000005222000-memory.dmp

Filesize
584KB

Download
memory/3168-131-0x00000000056A0000-0x0000000005C44000-memory.dmp

Filesize
5.6MB

Download
memory/3784-144-0x00000000004E0000-0x000000000050C000-memory.dmp

Filesize
176KB

Download
memory/3784-149-0x00000000004E0000-0x000000000050C000-memory.dmp

Filesize
176KB

Download
memory/3784-147-0x0000000000DE0000-0x0000000000E70000-memory.dmp

Filesize
576KB

Download
memory/3784-146-0x00000000024D0000-0x000000000281A000-memory.dmp

Filesize
3.3MB

Download
memory/3784-143-0x0000000000EF0000-0x0000000000F02000-memory.dmp

Filesize
72KB

Download
memory/3784-142-0x0000000000000000-mapping.dmp

Download
memory/4272-153-0x0000000000000000-mapping.dmp

Download
memory/4300-145-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads