xloader | 9696d3ec13f85ada39b140ae0096e765db0ff630f351ffa1e96484f6a4f2f030

General

Target

tmp.exe
Size

612KB
MD5

0229fa24ef686c20e6d50c5a75aa8c27
SHA1

07c4fa01089a3275f88ce4d7fa404040ac638c35
SHA256

9696d3ec13f85ada39b140ae0096e765db0ff630f351ffa1e96484f6a4f2f030
SHA512

bae11a5fa3b52c577f815dbda2aefca1a16475fd694cd62684dd31b6890731f14f1d1a3d147f5a159907b4e7e7dcc2cf5dff80b96a5e2076aa4c5cf7c2b56ca3

Score

10^/10

xloader iewb loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.9

Campaign

iewb

Decoy

n8FLlgIlb1rSEg5hJ9xMbw4hcmR38Q==

5vIAIY+pt81OtWs+FdIEdk7Y

LHIKc+oWGIQUUlfAAtEEdk7Y

ePM/cX2jvHrS

5hvPEw22+fdvmJz3C8FIVq0=

mb9EeX2jvHrS

Dx2zIYNvfjo8VUo5

6jVPnyJekv2RAc4gLKNwEqQ=

KWatHyjdE5Gj1Ng=

t9lk70gzUAZty4qjbVjF

6eUBeFPzKBWT125BFNIEdk7Y

dZUXOIyqTJGj1Ng=

iL3TVh2Jl5QVStnzxcAhIL8=

J1prtyklUfZGR/xDD71IbkWRd2yx

s9FgCOBRW9bU0Y6jbVjF

RYCbQDzcFBhcylgu

Fl0BV/8RJm6F9QRg8LXXTLo=

0dhumHzrCCZ3wdQg7nFF1AlL6Tk=

xvL+iL6wwX+/wH9K4lbZ/A==

N0lVceIFD5Gj1Ng=

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
behavioral1/memory/1716-63-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1716-64-0x000000000041F840-mapping.dmp	xloader
behavioral1/memory/1716-66-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1268-73-0x0000000000080000-0x00000000000AC000-memory.dmp	xloader
behavioral1/memory/1268-77-0x0000000000080000-0x00000000000AC000-memory.dmp	xloader

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:

tmp.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\International\Geo\Nation tmp.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1968 cmd.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\International\Geo\Nation	tmp.exe

pid	process
1968	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

tmp.exetmp.execmmon32.exe

description	pid	process	target process
PID 536 set thread context of 1716	536	tmp.exe	tmp.exe
PID 1716 set thread context of 1208	1716	tmp.exe	Explorer.EXE
PID 1268 set thread context of 1208	1268	cmmon32.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 17 IoCs

Processes:

tmp.execmmon32.exe

pid	process
1716	tmp.exe
1716	tmp.exe
1268	cmmon32.exe
1268	cmmon32.exe
1268	cmmon32.exe
1268	cmmon32.exe
1268	cmmon32.exe
1268	cmmon32.exe
1268	cmmon32.exe
1268	cmmon32.exe
1268	cmmon32.exe
1268	cmmon32.exe
1268	cmmon32.exe
1268	cmmon32.exe
1268	cmmon32.exe
1268	cmmon32.exe
1268	cmmon32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

tmp.execmmon32.exe

pid process

1716 tmp.exe
1716 tmp.exe
1716 tmp.exe
1268 cmmon32.exe
1268 cmmon32.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

tmp.execmmon32.exe

description pid process

Token: SeDebugPrivilege 1716 tmp.exe
Token: SeDebugPrivilege 1268 cmmon32.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1208 Explorer.EXE
1208 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1208 Explorer.EXE
1208 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1716	tmp.exe
Token: SeDebugPrivilege	1268	cmmon32.exe

pid	process
1208	Explorer.EXE
1208	Explorer.EXE

pid	process
1208	Explorer.EXE
1208	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

tmp.exeExplorer.EXEcmmon32.exe

description	pid	process	target process
PID 536 wrote to memory of 1716	536	tmp.exe	tmp.exe
PID 536 wrote to memory of 1716	536	tmp.exe	tmp.exe
PID 536 wrote to memory of 1716	536	tmp.exe	tmp.exe
PID 536 wrote to memory of 1716	536	tmp.exe	tmp.exe
PID 536 wrote to memory of 1716	536	tmp.exe	tmp.exe
PID 536 wrote to memory of 1716	536	tmp.exe	tmp.exe
PID 536 wrote to memory of 1716	536	tmp.exe	tmp.exe
PID 1208 wrote to memory of 1268	1208	Explorer.EXE	cmmon32.exe
PID 1208 wrote to memory of 1268	1208	Explorer.EXE	cmmon32.exe
PID 1208 wrote to memory of 1268	1208	Explorer.EXE	cmmon32.exe
PID 1208 wrote to memory of 1268	1208	Explorer.EXE	cmmon32.exe
PID 1268 wrote to memory of 1968	1268	cmmon32.exe	cmd.exe
PID 1268 wrote to memory of 1968	1268	cmmon32.exe	cmd.exe
PID 1268 wrote to memory of 1968	1268	cmmon32.exe	cmd.exe
PID 1268 wrote to memory of 1968	1268	cmmon32.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1208

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:536

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1716

C:\Windows\SysWOW64\cmmon32.exe
"C:\Windows\SysWOW64\cmmon32.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1268

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
3⤵
- Deletes itself
PID:1968

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/536-54-0x0000000000EF0000-0x0000000000F8E000-memory.dmp

Filesize
632KB

Download
memory/536-55-0x0000000075B61000-0x0000000075B63000-memory.dmp

Filesize
8KB

Download
memory/536-56-0x0000000000280000-0x00000000002A0000-memory.dmp

Filesize
128KB

Download
memory/536-57-0x0000000000570000-0x000000000057E000-memory.dmp

Filesize
56KB

Download
memory/536-58-0x0000000007EC0000-0x0000000007F36000-memory.dmp

Filesize
472KB

Download
memory/536-59-0x0000000004470000-0x00000000044A2000-memory.dmp

Filesize
200KB

Download
memory/1208-78-0x0000000004070000-0x0000000004132000-memory.dmp

Filesize
776KB

Download
memory/1208-76-0x0000000004070000-0x0000000004132000-memory.dmp

Filesize
776KB

Download
memory/1208-69-0x0000000004E80000-0x000000000500F000-memory.dmp

Filesize
1.6MB

Download
memory/1268-77-0x0000000000080000-0x00000000000AC000-memory.dmp

Filesize
176KB

Download
memory/1268-75-0x0000000001E10000-0x0000000001EA0000-memory.dmp

Filesize
576KB

Download
memory/1268-73-0x0000000000080000-0x00000000000AC000-memory.dmp

Filesize
176KB

Download
memory/1268-72-0x00000000008E0000-0x00000000008ED000-memory.dmp

Filesize
52KB

Download
memory/1268-74-0x0000000001FC0000-0x00000000022C3000-memory.dmp

Filesize
3.0MB

Download
memory/1268-70-0x0000000000000000-mapping.dmp

Download
memory/1716-66-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1716-68-0x0000000000140000-0x0000000000151000-memory.dmp

Filesize
68KB

Download
memory/1716-67-0x0000000000A40000-0x0000000000D43000-memory.dmp

Filesize
3.0MB

Download
memory/1716-64-0x000000000041F840-mapping.dmp

Download
memory/1716-63-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1716-61-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1716-60-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1968-71-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads