xloader | 957ef243d645248c1c80c3b121f7290c950530d525c9a54a961be12e1c6dfdfc

General

Target

TNT Documents.exe
Size

437KB
MD5

b645c00f43011c6c544de85252898b5a
SHA1

e56e43d323e9c6e65c5909b8961d81453fca53fa
SHA256

a23066484dc83fa51ab36d9dc530799662abf63c7a12ed9cc10acc272e0c14f6
SHA512

d9bde87b1d28b37db66a40bfa1a6e765a2dcbe2b23e6034fe1bacf56cbf9d38ccdecec3fcfdd50230d547f1334f038293129f000f42b8ec7f3b2bbaca53400d4
SSDEEP

6144:zqwpecjP4vnTNSqMkRwkfIHd/rCPxiPGs25jwtTGOuBdkE4jcZOit7k7YwifsF/0:jpAP8kw7/I7s2JHTBUpiovifshFG

Score

10^/10

xloader how6 discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

how6

Decoy

wealthcabana.com

fourfortyfourcreations.com

cqqcsy.com

bhwzjd.com

niftyfashionrewards.com

andersongiftemporium.com

smarttradingcoin.com

ilarealty.com

sherrywine.net

fsecg.info

xoti.top

pirosconsulting.com

fundapie.com

bbgm4egda.xyz

legalfortmyers.com

improvizy.com

yxdyhs.com

lucky2balls.com

panelmall.com

davenportkartway.com

Signatures

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

Xloader payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2992-11-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2992-15-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1720-20-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Deletes itself 1 IoCs

pid	Process
1048	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2792 set thread context of 2992	2792	TNT Documents.exe	29
PID 2992 set thread context of 1360	2992	TNT Documents.exe	20
PID 1720 set thread context of 1360	1720	chkdsk.exe	20

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TNT Documents.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
2992	TNT Documents.exe
2992	TNT Documents.exe
1720	chkdsk.exe
1720	chkdsk.exe
1720	chkdsk.exe
1720	chkdsk.exe
1720	chkdsk.exe
1720	chkdsk.exe
1720	chkdsk.exe
1720	chkdsk.exe
1720	chkdsk.exe
1720	chkdsk.exe
1720	chkdsk.exe
1720	chkdsk.exe
1720	chkdsk.exe
1720	chkdsk.exe
1720	chkdsk.exe
1720	chkdsk.exe
1720	chkdsk.exe
1720	chkdsk.exe
1720	chkdsk.exe
1720	chkdsk.exe
1720	chkdsk.exe
1720	chkdsk.exe
1720	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2992	TNT Documents.exe
2992	TNT Documents.exe
2992	TNT Documents.exe
1720	chkdsk.exe
1720	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2992	TNT Documents.exe
Token: SeDebugPrivilege	1720	chkdsk.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 2992	2792	TNT Documents.exe	29
PID 2792 wrote to memory of 2992	2792	TNT Documents.exe	29
PID 2792 wrote to memory of 2992	2792	TNT Documents.exe	29
PID 2792 wrote to memory of 2992	2792	TNT Documents.exe	29
PID 2792 wrote to memory of 2992	2792	TNT Documents.exe	29
PID 2792 wrote to memory of 2992	2792	TNT Documents.exe	29
PID 2792 wrote to memory of 2992	2792	TNT Documents.exe	29
PID 1360 wrote to memory of 1720	1360	Explorer.EXE	30
PID 1360 wrote to memory of 1720	1360	Explorer.EXE	30
PID 1360 wrote to memory of 1720	1360	Explorer.EXE	30
PID 1360 wrote to memory of 1720	1360	Explorer.EXE	30
PID 1720 wrote to memory of 1048	1720	chkdsk.exe	31
PID 1720 wrote to memory of 1048	1720	chkdsk.exe	31
PID 1720 wrote to memory of 1048	1720	chkdsk.exe	31
PID 1720 wrote to memory of 1048	1720	chkdsk.exe	31

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1360
- C:\Users\Admin\AppData\Local\Temp\TNT Documents.exe
  "C:\Users\Admin\AppData\Local\Temp\TNT Documents.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2792
- - C:\Users\Admin\AppData\Local\Temp\TNT Documents.exe
    "{path}"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2992
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1720
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\TNT Documents.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:1048

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1360-17-0x0000000006BF0000-0x0000000006D86000-memory.dmp

Filesize
1.6MB

Download
memory/1360-23-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1360-21-0x0000000006BF0000-0x0000000006D86000-memory.dmp

Filesize
1.6MB

Download
memory/1720-20-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1720-19-0x00000000002A0000-0x00000000002A7000-memory.dmp

Filesize
28KB

Download
memory/1720-18-0x00000000002A0000-0x00000000002A7000-memory.dmp

Filesize
28KB

Download
memory/2792-1-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/2792-2-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/2792-3-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/2792-4-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/2792-0-0x00000000745E1000-0x00000000745E2000-memory.dmp

Filesize
4KB

Download
memory/2792-12-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/2992-6-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2992-16-0x0000000000330000-0x0000000000341000-memory.dmp

Filesize
68KB

Download
memory/2992-15-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2992-13-0x0000000000860000-0x0000000000B63000-memory.dmp

Filesize
3.0MB

Download
memory/2992-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2992-11-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2992-7-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

Analysis

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