xloader | fdd377a939cebf1d0d77f6e5ad11bc09170ed283f51b79811478d45b3dfcda10

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220722-en
resource tags

arch:x64arch:x86image:win10v2004-20220722-enlocale:en-usos:windows10-2004-x64system
submitted
11/08/2022, 06:38

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General

Target
SWIFT002.exe
Size 638KB
Sample220811-hd2gyaebe4
SHA256 fdd377a939cebf1d0d77f6e5ad11bc09170ed283f51b79811478d45b3dfcda10
MD5 2de0fb573005cb158a0356fae71c25dd
SHA1 089887a506669a5739751b9a38f3fa134e3f0ff9
SHA512 11b5a6233e9578ca571abb299bdda001d3e800463add0c2c2b7f26215bda158ac061db39891ba6b1a406e91f5dbdec5bdc3d515c9bd460569fff1cd139f50592
MD5 SHA1 SHA512

Score

10^/10

xloader zzun loader persistence rat spyware stealer

Malware Config

Extracted

Family

xloader

Version

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==
lnoad0Hkgrwl9uXlghvqdz33UA==
1msShiu+9wisELGDjYAK
FBXFOinAK8ylnMZzi35Okw==
V8Y7/cBnt2oGAA==
VfuI0k5pSmi6+aNjIlAT2mspCZBZLGA=
de74yg89D61bSiU=
V2UPjYUvwh21qdxUr4Mf
DcFXvTxFMlyfL5JJIU0=
GldbH/CCt2oGAA==
sxdEIBwn+o+pUMTX
UmViK+1/Knr8814sdHEI
jrfKoZ6paLyeEBETgw4M4Jk=
SR27MizpGwCa19Kb1A==
2DGo9XUNxBOe19Kb1A==
7tBn2cG8jasWHE7w559Aig==
8qtAoVHxl/KGerbsfA4M4Jk=
fC3AH6Utt2oGAA==
HltlPHZ7FpSpUMTX
xd0B+Pr30gBfQGYXafOW1dOSflv+SshC
DKXWyiOecY7319Kb1A==
Pvx505EaswiHYF3z559Aig==
aJ6kaz7CWKsP9g9Ur4Mf
qcvfxb9TwUoDCrfXw/uTdSkTCJBZLGA=
I++iH8xJxFp73nyUjJOg3/PS/3W7
K1N1guwbLz0AiDI=
vp2SfavTmBXNzLeXmIoUhsB7
UlAVhgIfLT0AiDI=
6BKH5GjHt2YIo/qhA69S+5E=
6U29K+qVw5hT4gQ83A==
G9NTmhwpAwY6r4I69kT4dz33UA==
0qstoaNBmBrMlfwTKhrAtLhb4rc=
ZvMhGW52cyAAXkVV3Jc96Lhb4rc=
N9Z3/PmEt2oGAA==
ohlOhcaP741QFw==
9WF3PohVjEolhCY=
am0ek4wtmkEI9GMVhw4M4Jk=
ROotH4+jhp7vnzVdww==
uvkuFhGmJlyjpFFpi35Okw==
ICHQQTIjaxTryG8weFI=
AhIZ8uh974+pUMTX
pEBtSFHr/5s0GQ==
qAcuLnqLNeOpUMTX
bcHv6WdbHoWEylgsdHEI
Nz/rbWh3s4WFDL9uPlAhXKNz
secure-id6793-chase.com

Signatures

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

Xloader payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/1872-139-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/1872-145-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/3268-147-0x0000000000A60000-0x0000000000A8C000-memory.dmp	xloader
behavioral2/memory/3268-152-0x0000000000A60000-0x0000000000A8C000-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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\Control Panel\International\Geo\Nation	SWIFT002.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	msdt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\QLRHBTBPEP = "C:\\Program Files (x86)\\Jyps8ftb\\Cookiessj8duf.exe"	msdt.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3732 set thread context of 1872	3732	SWIFT002.exe	92
PID 1872 set thread context of 940	1872	SWIFT002.exe	44
PID 3268 set thread context of 940	3268	msdt.exe	44

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Jyps8ftb\Cookiessj8duf.exe	msdt.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-3463845317-933582289-45817732-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	msdt.exe

Suspicious behavior: EnumeratesProcesses 37 IoCs

pid	Process
3732	SWIFT002.exe
3732	SWIFT002.exe
3732	SWIFT002.exe
1872	SWIFT002.exe
1872	SWIFT002.exe
1872	SWIFT002.exe
1872	SWIFT002.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
940	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
1872	SWIFT002.exe
1872	SWIFT002.exe
1872	SWIFT002.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe
3268	msdt.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	3732	SWIFT002.exe
Token: SeDebugPrivilege	1872	SWIFT002.exe
Token: SeDebugPrivilege	3268	msdt.exe
Token: SeShutdownPrivilege	940	Explorer.EXE
Token: SeCreatePagefilePrivilege	940	Explorer.EXE
Token: SeShutdownPrivilege	940	Explorer.EXE
Token: SeCreatePagefilePrivilege	940	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
940	Explorer.EXE
940	Explorer.EXE

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3732 wrote to memory of 2416	3732	SWIFT002.exe	91
PID 3732 wrote to memory of 2416	3732	SWIFT002.exe	91
PID 3732 wrote to memory of 2416	3732	SWIFT002.exe	91
PID 3732 wrote to memory of 1872	3732	SWIFT002.exe	92
PID 3732 wrote to memory of 1872	3732	SWIFT002.exe	92
PID 3732 wrote to memory of 1872	3732	SWIFT002.exe	92
PID 3732 wrote to memory of 1872	3732	SWIFT002.exe	92
PID 3732 wrote to memory of 1872	3732	SWIFT002.exe	92
PID 3732 wrote to memory of 1872	3732	SWIFT002.exe	92
PID 940 wrote to memory of 3268	940	Explorer.EXE	93
PID 940 wrote to memory of 3268	940	Explorer.EXE	93
PID 940 wrote to memory of 3268	940	Explorer.EXE	93
PID 3268 wrote to memory of 1760	3268	msdt.exe	94
PID 3268 wrote to memory of 1760	3268	msdt.exe	94
PID 3268 wrote to memory of 1760	3268	msdt.exe	94
PID 3268 wrote to memory of 3088	3268	msdt.exe	97
PID 3268 wrote to memory of 3088	3268	msdt.exe	97
PID 3268 wrote to memory of 3088	3268	msdt.exe	97
PID 3268 wrote to memory of 4644	3268	msdt.exe	99
PID 3268 wrote to memory of 4644	3268	msdt.exe	99
PID 3268 wrote to memory of 4644	3268	msdt.exe	99
PID 3268 wrote to memory of 4064	3268	msdt.exe	101
PID 3268 wrote to memory of 4064	3268	msdt.exe	101
PID 3268 wrote to memory of 4064	3268	msdt.exe	101

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:940
- C:\Users\Admin\AppData\Local\Temp\SWIFT002.exe
  "C:\Users\Admin\AppData\Local\Temp\SWIFT002.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3732
- - C:\Users\Admin\AppData\Local\Temp\SWIFT002.exe
    "{path}"
    3⤵
    PID:2416
- - C:\Users\Admin\AppData\Local\Temp\SWIFT002.exe
    "{path}"
    3⤵
    - Checks computer location settings
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1872
- C:\Windows\SysWOW64\msdt.exe
  "C:\Windows\SysWOW64\msdt.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Program Files directory
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3268
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\SWIFT002.exe"
    3⤵
    PID:1760
- - C:\Windows\SysWOW64\cmd.exe
    /c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
    3⤵
    PID:3088
- - C:\Windows\SysWOW64\cmd.exe
    /c copy "C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
    3⤵
    PID:4644
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:4064

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

DB1

Path C:\Users\Admin\AppData\Local\Temp\DB1
Size 40KB
SHA256 b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf
MD5 b608d407fc15adea97c26936bc6f03f6
SHA1 953e7420801c76393902c0d6bb56148947e41571
SHA512 cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4
SSDEEP 48:2j3WBA+IIYICVEq8MX0D0HSFlNUK6lGNxGt7KLk8s8LKvUf9KVyJ7hU:u2FCn8MZyFlulGNxGt7KLyeymw
MD5 SHA1 SHA512 SSDEEP

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DB1

Path C:\Users\Admin\AppData\Local\Temp\DB1
Size 48KB
SHA256 c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a
MD5 349e6eb110e34a08924d92f6b334801d
SHA1 bdfb289daff51890cc71697b6322aa4b35ec9169
SHA512 2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574
SSDEEP 96:uRMKLyeymwxCn8MZyFlSynlbiXyKwt8hG:uRkxGOXnlbibhG
MD5 SHA1 SHA512 SSDEEP

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memory/940-143-0x0000000008B40000-0x0000000008C72000-memory.dmp

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memory/940-153-0x0000000008D80000-0x0000000008EBC000-memory.dmp

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memory/940-151-0x0000000008D80000-0x0000000008EBC000-memory.dmp

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memory/1872-141-0x0000000000FD0000-0x000000000131A000-memory.dmp

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memory/1872-142-0x0000000001340000-0x0000000001351000-memory.dmp

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memory/1872-139-0x0000000000400000-0x000000000042C000-memory.dmp

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memory/1872-145-0x0000000000400000-0x000000000042C000-memory.dmp

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memory/3268-147-0x0000000000A60000-0x0000000000A8C000-memory.dmp

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memory/3268-146-0x0000000000020000-0x0000000000077000-memory.dmp

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memory/3268-149-0x0000000002B90000-0x0000000002EDA000-memory.dmp

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memory/3268-150-0x00000000028F0000-0x0000000002980000-memory.dmp

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memory/3268-152-0x0000000000A60000-0x0000000000A8C000-memory.dmp

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memory/3732-136-0x0000000004C90000-0x0000000004C9A000-memory.dmp

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memory/3732-135-0x0000000004DD0000-0x0000000004E6C000-memory.dmp

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memory/3732-132-0x0000000000250000-0x00000000002F6000-memory.dmp

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memory/3732-134-0x0000000004CD0000-0x0000000004D62000-memory.dmp

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memory/3732-133-0x0000000005380000-0x0000000005924000-memory.dmp

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