xloader | 7cfb37ee421dd4cb297bd754e077319a9c58a3a638f51ab048207fa8af84a2b6

General

Target

Aviso de Pago pdf .exe
Size

929KB
MD5

db085289795d7e9a90c5271efc2affd5
SHA1

c0e48a77cb314f0d12408aac6c189851d35e378d
SHA256

4a4480a59d046a261cf8b3b604d0c6cb87e54633aa784627643ea30ec3a63da4
SHA512

6811f2b59a62da00890dbc54351bc8d2464a66dd302bb047a5b80e51058acbed983177a18af0acfe483b3f49501a15d855003bdf14b05425cbe676727e8eae0b
SSDEEP

12288:yCOhcPUWRAhoubH9esjXXXsjSSRX00m2cdSkEtDNOwS0PE1c:yfcPU5L8Qnc1RRfzewSUIc

Score

10^/10

xloader uabu discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

uabu

Decoy

khedutbajar.com

vehicleporn.com

misanthropedia.com

partum.life

tenshinstore.com

51tayi.com

rgr.one

lattakia-imbiss.com

escalerasdemetal.com

nationalurc.info

prettygalglam.com

globalperfumery.com

ivulam.xyz

qingniang.club

quick2ulube.com

curiget.xyz

ujeiakosdka.com

lacapitalcaferestaurant.com

agarkovsport.online

okashidonya.com

Signatures

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

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

resource	yara_rule
behavioral1/memory/2336-3-0x0000000000680000-0x000000000068A000-memory.dmp	CustAttr

Xloader payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2084-15-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2084-19-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2900-25-0x00000000000C0000-0x00000000000E9000-memory.dmp	xloader

Deletes itself 1 IoCs

pid	Process
3028	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2336 set thread context of 2084	2336	Aviso de Pago pdf .exe	30
PID 2084 set thread context of 1196	2084	Aviso de Pago pdf .exe	20
PID 2900 set thread context of 1196	2900	systray.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	Aviso de Pago pdf .exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	systray.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
2336	Aviso de Pago pdf .exe
2336	Aviso de Pago pdf .exe
2084	Aviso de Pago pdf .exe
2084	Aviso de Pago pdf .exe
2900	systray.exe
2900	systray.exe
2900	systray.exe
2900	systray.exe
2900	systray.exe
2900	systray.exe
2900	systray.exe
2900	systray.exe
2900	systray.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2084	Aviso de Pago pdf .exe
2084	Aviso de Pago pdf .exe
2084	Aviso de Pago pdf .exe
2900	systray.exe
2900	systray.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2336	Aviso de Pago pdf .exe
Token: SeDebugPrivilege	2084	Aviso de Pago pdf .exe
Token: SeDebugPrivilege	2900	systray.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 2084	2336	Aviso de Pago pdf .exe	30
PID 2336 wrote to memory of 2084	2336	Aviso de Pago pdf .exe	30
PID 2336 wrote to memory of 2084	2336	Aviso de Pago pdf .exe	30
PID 2336 wrote to memory of 2084	2336	Aviso de Pago pdf .exe	30
PID 2336 wrote to memory of 2084	2336	Aviso de Pago pdf .exe	30
PID 2336 wrote to memory of 2084	2336	Aviso de Pago pdf .exe	30
PID 2336 wrote to memory of 2084	2336	Aviso de Pago pdf .exe	30
PID 1196 wrote to memory of 2900	1196	Explorer.EXE	31
PID 1196 wrote to memory of 2900	1196	Explorer.EXE	31
PID 1196 wrote to memory of 2900	1196	Explorer.EXE	31
PID 1196 wrote to memory of 2900	1196	Explorer.EXE	31
PID 2900 wrote to memory of 3028	2900	systray.exe	32
PID 2900 wrote to memory of 3028	2900	systray.exe	32
PID 2900 wrote to memory of 3028	2900	systray.exe	32
PID 2900 wrote to memory of 3028	2900	systray.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Users\Admin\AppData\Local\Temp\Aviso de Pago pdf .exe
  "C:\Users\Admin\AppData\Local\Temp\Aviso de Pago pdf .exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2336
- - C:\Users\Admin\AppData\Local\Temp\Aviso de Pago pdf .exe
    "C:\Users\Admin\AppData\Local\Temp\Aviso de Pago pdf .exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2084
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2900
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Aviso de Pago pdf .exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:3028

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/1196-21-0x0000000003E10000-0x0000000003F10000-memory.dmp

Filesize
1024KB

Download
memory/1196-27-0x0000000000070000-0x0000000000170000-memory.dmp

Filesize
1024KB

Download
memory/1196-26-0x0000000007E70000-0x0000000007FEF000-memory.dmp

Filesize
1.5MB

Download
memory/1196-22-0x0000000007E70000-0x0000000007FEF000-memory.dmp

Filesize
1.5MB

Download
memory/2084-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2084-15-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2084-19-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2084-20-0x0000000000190000-0x00000000001A1000-memory.dmp

Filesize
68KB

Download
memory/2084-17-0x0000000000A00000-0x0000000000D03000-memory.dmp

Filesize
3.0MB

Download
memory/2084-9-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2084-11-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2336-16-0x0000000074440000-0x0000000074B2E000-memory.dmp

Filesize
6.9MB

Download
memory/2336-0-0x000000007444E000-0x000000007444F000-memory.dmp

Filesize
4KB

Download
memory/2336-5-0x000000007444E000-0x000000007444F000-memory.dmp

Filesize
4KB

Download
memory/2336-8-0x0000000000B40000-0x0000000000B80000-memory.dmp

Filesize
256KB

Download
memory/2336-7-0x0000000004DC0000-0x0000000004E48000-memory.dmp

Filesize
544KB

Download
memory/2336-6-0x0000000074440000-0x0000000074B2E000-memory.dmp

Filesize
6.9MB

Download
memory/2336-3-0x0000000000680000-0x000000000068A000-memory.dmp

Filesize
40KB

Download
memory/2336-4-0x0000000074440000-0x0000000074B2E000-memory.dmp

Filesize
6.9MB

Download
memory/2336-2-0x0000000074440000-0x0000000074B2E000-memory.dmp

Filesize
6.9MB

Download
memory/2336-1-0x0000000000DB0000-0x0000000000E9E000-memory.dmp

Filesize
952KB

Download
memory/2900-24-0x0000000000560000-0x0000000000565000-memory.dmp

Filesize
20KB

Download
memory/2900-23-0x0000000000560000-0x0000000000565000-memory.dmp

Filesize
20KB

Download
memory/2900-25-0x00000000000C0000-0x00000000000E9000-memory.dmp

Filesize
164KB

Download

Analysis

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