xloader | 5166a1e854b5d78998547a4444773c97aeeb57abbc9fcc9192d1cd62af941f31

General

Target

swift_copy.exe
Size

47KB
MD5

c73d88805029e688535eb0cf81fe2427
SHA1

c22cc249b36bb6bb0d7419492f8c741ab51caffc
SHA256

5166a1e854b5d78998547a4444773c97aeeb57abbc9fcc9192d1cd62af941f31
SHA512

ddb3d9957ade764297e6c934cacc222a023157c6ce69cb62fc2827faf39314d8b83335aa002cb48780c2d1aac39547bc82b05357c82e6be8462141f164109b43
SSDEEP

768:oVLbB3wowpdgsRTNhTzAL0Jt2aN07wy45rrI:oV6owJvhTkLTk/I

Score

10^/10

xloader zzun loader persistence rat

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

Xloader payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/1976-147-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/1976-149-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/3048-155-0x0000000000640000-0x000000000066C000-memory.dmp	xloader
behavioral2/memory/3048-158-0x0000000000640000-0x000000000066C000-memory.dmp	xloader

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

61 3048 rundll32.exe
63 3048 rundll32.exe

flow	pid	process
61	3048	rundll32.exe
63	3048	rundll32.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:

swift_copy.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	swift_copy.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

swift_copy.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rlwfhvqc = "\"C:\\Users\\Admin\\AppData\\Roaming\\Dpita\\Rlwfhvqc.exe\""	swift_copy.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

swift_copy.exeInstallUtil.exerundll32.exe

description	pid	process	target process
PID 924 set thread context of 1976	924	swift_copy.exe	InstallUtil.exe
PID 1976 set thread context of 2152	1976	InstallUtil.exe	Explorer.EXE
PID 3048 set thread context of 2152	3048	rundll32.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 36 IoCs

Processes:

powershell.exeInstallUtil.exerundll32.exe

pid	process
3844	powershell.exe
3844	powershell.exe
1976	InstallUtil.exe
1976	InstallUtil.exe
1976	InstallUtil.exe
1976	InstallUtil.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe
3048	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2152 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

InstallUtil.exerundll32.exe

pid process

1976 InstallUtil.exe
1976 InstallUtil.exe
1976 InstallUtil.exe
3048 rundll32.exe
3048 rundll32.exe

pid	process
2152	Explorer.EXE

pid	process
1976	InstallUtil.exe
1976	InstallUtil.exe
1976	InstallUtil.exe
3048	rundll32.exe
3048	rundll32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

swift_copy.exepowershell.exeInstallUtil.exerundll32.exe

description	pid	process
Token: SeDebugPrivilege	924	swift_copy.exe
Token: SeDebugPrivilege	3844	powershell.exe
Token: SeDebugPrivilege	1976	InstallUtil.exe
Token: SeDebugPrivilege	3048	rundll32.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

swift_copy.exeExplorer.EXErundll32.exe

description	pid	process	target process
PID 924 wrote to memory of 3844	924	swift_copy.exe	powershell.exe
PID 924 wrote to memory of 3844	924	swift_copy.exe	powershell.exe
PID 924 wrote to memory of 3844	924	swift_copy.exe	powershell.exe
PID 924 wrote to memory of 1976	924	swift_copy.exe	InstallUtil.exe
PID 924 wrote to memory of 1976	924	swift_copy.exe	InstallUtil.exe
PID 924 wrote to memory of 1976	924	swift_copy.exe	InstallUtil.exe
PID 924 wrote to memory of 1976	924	swift_copy.exe	InstallUtil.exe
PID 924 wrote to memory of 1976	924	swift_copy.exe	InstallUtil.exe
PID 924 wrote to memory of 1976	924	swift_copy.exe	InstallUtil.exe
PID 2152 wrote to memory of 3048	2152	Explorer.EXE	rundll32.exe
PID 2152 wrote to memory of 3048	2152	Explorer.EXE	rundll32.exe
PID 2152 wrote to memory of 3048	2152	Explorer.EXE	rundll32.exe
PID 3048 wrote to memory of 840	3048	rundll32.exe	cmd.exe
PID 3048 wrote to memory of 840	3048	rundll32.exe	cmd.exe
PID 3048 wrote to memory of 840	3048	rundll32.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2152

C:\Users\Admin\AppData\Local\Temp\swift_copy.exe
"C:\Users\Admin\AppData\Local\Temp\swift_copy.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:924

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANwA=
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3844

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1976

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\SysWOW64\rundll32.exe"
2⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3048

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
3⤵
PID:840

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

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/840-156-0x0000000000000000-mapping.dmp

Download
memory/924-132-0x0000000000510000-0x0000000000522000-memory.dmp

Filesize
72KB

Download
memory/924-133-0x0000000005B00000-0x0000000005B50000-memory.dmp

Filesize
320KB

Download
memory/924-135-0x0000000006280000-0x0000000006824000-memory.dmp

Filesize
5.6MB

Download
memory/924-136-0x0000000005D70000-0x0000000005E02000-memory.dmp

Filesize
584KB

Download
memory/924-137-0x0000000005CD0000-0x0000000005CF2000-memory.dmp

Filesize
136KB

Download
memory/924-134-0x0000000005C10000-0x0000000005CC2000-memory.dmp

Filesize
712KB

Download
memory/1976-147-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1976-151-0x0000000001540000-0x0000000001551000-memory.dmp

Filesize
68KB

Download
memory/1976-150-0x00000000015A0000-0x00000000018EA000-memory.dmp

Filesize
3.3MB

Download
memory/1976-149-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1976-146-0x0000000000000000-mapping.dmp

Download
memory/2152-160-0x0000000007CB0000-0x0000000007DFA000-memory.dmp

Filesize
1.3MB

Download
memory/2152-161-0x0000000007CB0000-0x0000000007DFA000-memory.dmp

Filesize
1.3MB

Download
memory/2152-152-0x0000000008060000-0x00000000081E8000-memory.dmp

Filesize
1.5MB

Download
memory/3048-155-0x0000000000640000-0x000000000066C000-memory.dmp

Filesize
176KB

Download
memory/3048-158-0x0000000000640000-0x000000000066C000-memory.dmp

Filesize
176KB

Download
memory/3048-159-0x0000000002330000-0x00000000023C0000-memory.dmp

Filesize
576KB

Download
memory/3048-157-0x0000000002500000-0x000000000284A000-memory.dmp

Filesize
3.3MB

Download
memory/3048-154-0x0000000000020000-0x0000000000034000-memory.dmp

Filesize
80KB

Download
memory/3048-153-0x0000000000000000-mapping.dmp

Download
memory/3844-141-0x0000000005A70000-0x0000000005AD6000-memory.dmp

Filesize
408KB

Download
memory/3844-142-0x0000000005AE0000-0x0000000005B46000-memory.dmp

Filesize
408KB

Download
memory/3844-140-0x00000000052D0000-0x00000000058F8000-memory.dmp

Filesize
6.2MB

Download
memory/3844-143-0x0000000006110000-0x000000000612E000-memory.dmp

Filesize
120KB

Download
memory/3844-145-0x00000000064F0000-0x000000000650A000-memory.dmp

Filesize
104KB

Download
memory/3844-144-0x0000000007780000-0x0000000007DFA000-memory.dmp

Filesize
6.5MB

Download
memory/3844-139-0x0000000002B40000-0x0000000002B76000-memory.dmp

Filesize
216KB

Download
memory/3844-138-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads