xloader | 4b3af4ebfe94ecb1730c15620080935f619b6592fad681921968f986c030c0c3

General

Target

tmp/femp.exe
Size

344KB
MD5

c62a556b445ff8cf1b9e0b038a13137e
SHA1

7fefc1609a4e66d234abb47a1536857317bdb31b
SHA256

4b3af4ebfe94ecb1730c15620080935f619b6592fad681921968f986c030c0c3
SHA512

c372806da30c98b047d46f8e70cce90f93829fe484ff5eb49354bd132a846ff126ea4c7024e5fae8de60c96117d940ea4fe2d6c783c67987354c7eee99c4638e

Score

10^/10

xloader ef6c loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

ef6c

C2

http://www.fis.photos/ef6c/

Decoy

gicaredocs.com

govusergroup.com

conversationspit.com

brondairy.com

rjtherealest.com

xn--9m1bq8wgkag3rjvb.com

mylori.net

softandcute.store

ahljsm.com

shacksolid.com

weekendmusecollection.com

gaminghallarna.net

pgonline111.online

44mpt.xyz

ambrandt.com

eddytattoo.com

blendeqes.com

upinmyfeels.com

lacucinadesign.com

docomoau.xyz

Signatures

Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader

Xloader Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3572-125-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/3572-126-0x000000000041D3D0-mapping.dmp	xloader
behavioral2/memory/3572-131-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/1764-136-0x0000000000C10000-0x0000000000C39000-memory.dmp	xloader

Suspicious use of SetThreadContext 4 IoCs

Processes:

femp.exefemp.exeNETSTAT.EXE

description	pid	process	target process
PID 2540 set thread context of 3572	2540	femp.exe	femp.exe
PID 3572 set thread context of 2892	3572	femp.exe	Explorer.EXE
PID 3572 set thread context of 2892	3572	femp.exe	Explorer.EXE
PID 1764 set thread context of 2892	1764	NETSTAT.EXE	Explorer.EXE

Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command-Line Interface
T1059

Processes:

NETSTAT.EXE

pid process

1764 NETSTAT.EXE

pid	process
1764	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 44 IoCs

Processes:

femp.exeNETSTAT.EXE

pid	process
3572	femp.exe
3572	femp.exe
3572	femp.exe
3572	femp.exe
3572	femp.exe
3572	femp.exe
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2892 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

femp.exeNETSTAT.EXE

pid process

3572 femp.exe
3572 femp.exe
3572 femp.exe
3572 femp.exe
1764 NETSTAT.EXE
1764 NETSTAT.EXE
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

femp.exeNETSTAT.EXE

description pid process

Token: SeDebugPrivilege 3572 femp.exe
Token: SeDebugPrivilege 1764 NETSTAT.EXE

pid	process
2892	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	3572	femp.exe
Token: SeDebugPrivilege	1764	NETSTAT.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

femp.exeExplorer.EXENETSTAT.EXE

description	pid	process	target process
PID 2540 wrote to memory of 3572	2540	femp.exe	femp.exe
PID 2540 wrote to memory of 3572	2540	femp.exe	femp.exe
PID 2540 wrote to memory of 3572	2540	femp.exe	femp.exe
PID 2540 wrote to memory of 3572	2540	femp.exe	femp.exe
PID 2540 wrote to memory of 3572	2540	femp.exe	femp.exe
PID 2540 wrote to memory of 3572	2540	femp.exe	femp.exe
PID 2892 wrote to memory of 1764	2892	Explorer.EXE	NETSTAT.EXE
PID 2892 wrote to memory of 1764	2892	Explorer.EXE	NETSTAT.EXE
PID 2892 wrote to memory of 1764	2892	Explorer.EXE	NETSTAT.EXE
PID 1764 wrote to memory of 3576	1764	NETSTAT.EXE	cmd.exe
PID 1764 wrote to memory of 3576	1764	NETSTAT.EXE	cmd.exe
PID 1764 wrote to memory of 3576	1764	NETSTAT.EXE	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2892

C:\Users\Admin\AppData\Local\Temp\tmp\femp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp\femp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2540

C:\Users\Admin\AppData\Local\Temp\tmp\femp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp\femp.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3572

C:\Windows\SysWOW64\NETSTAT.EXE
"C:\Windows\SysWOW64\NETSTAT.EXE"
2⤵
- Suspicious use of SetThreadContext
- Gathers network information
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1764

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\tmp\femp.exe"
3⤵
PID:3576

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Command-Line Interface

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1764-134-0x0000000000000000-mapping.dmp

Download
memory/1764-135-0x0000000001320000-0x000000000132B000-memory.dmp

Filesize
44KB

Download
memory/1764-136-0x0000000000C10000-0x0000000000C39000-memory.dmp

Filesize
164KB

Download
memory/1764-137-0x00000000034D0000-0x00000000037F0000-memory.dmp

Filesize
3.1MB

Download
memory/1764-139-0x0000000000F40000-0x0000000000FD0000-memory.dmp

Filesize
576KB

Download
memory/2540-120-0x0000000005460000-0x0000000005461000-memory.dmp

Filesize
4KB

Download
memory/2540-123-0x0000000006200000-0x0000000006201000-memory.dmp

Filesize
4KB

Download
memory/2540-124-0x00000000061B0000-0x00000000061FB000-memory.dmp

Filesize
300KB

Download
memory/2540-122-0x0000000005400000-0x0000000005492000-memory.dmp

Filesize
584KB

Download
memory/2540-121-0x0000000005540000-0x0000000005545000-memory.dmp

Filesize
20KB

Download
memory/2540-116-0x0000000000BD0000-0x0000000000BD1000-memory.dmp

Filesize
4KB

Download
memory/2540-119-0x00000000054A0000-0x00000000054A1000-memory.dmp

Filesize
4KB

Download
memory/2540-118-0x0000000005A60000-0x0000000005A61000-memory.dmp

Filesize
4KB

Download
memory/2892-140-0x0000000006C10000-0x0000000006D35000-memory.dmp

Filesize
1.1MB

Download
memory/2892-133-0x0000000006FA0000-0x00000000070EC000-memory.dmp

Filesize
1.3MB

Download
memory/2892-130-0x00000000031A0000-0x0000000003284000-memory.dmp

Filesize
912KB

Download
memory/3572-129-0x0000000000FF0000-0x0000000001001000-memory.dmp

Filesize
68KB

Download
memory/3572-132-0x0000000001350000-0x0000000001361000-memory.dmp

Filesize
68KB

Download
memory/3572-131-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3572-128-0x0000000001030000-0x0000000001350000-memory.dmp

Filesize
3.1MB

Download
memory/3572-126-0x000000000041D3D0-mapping.dmp

Download
memory/3572-125-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3576-138-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads