formbook | d036c4b1a4ff6265030084d453558c56f6a2d19b5a6af25943c47bc96895891c

General

Target

tmp.exe
Size

330KB
MD5

58a93d1d064b9e8265ea798531adb0bf
SHA1

d5e30f238fabd304d30ba2c726c71fb47765b494
SHA256

d036c4b1a4ff6265030084d453558c56f6a2d19b5a6af25943c47bc96895891c
SHA512

c5e9c0e07ea8904a45011380836ff8f0b936954729df4fb18f62414322f5815ec8ebc5803729a13b783cf87a5bd723fc821405e3579e017c7b19059e57f76bfb
SSDEEP

6144:PYa69K+mD7y0q2hhBCH4m6Qx8qQ5+/ucZiE2TZPwc7j0W6KmZE0HOkv/kBa:PYnUD71qc+6Q+qQuu/Tn396KmLDv/

Score

10^/10

formbook xloader poub loader persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

poub

Decoy

WY0eksfISzRg4O6c+opnGL6gaw==

moRjn9ExtYi8UmUo+Tya

2vME+GedoxzFnuLXesUoVj4=

EvW4JWJ1NQ8nN3tA3SM=

2mK9efMZMgN1VOs=

8d0jua5b0J6AQEW7

/2cyThOd37DSTYMASDye4Q0t/Vs=

ral+tbIh2KKAQEW7

YLY9jsPtYB/FRmMo+Tya

R1WcElWAMtFxFrVqtZT2ZpIS9xRZNho=

KFXGg/T1pCC9GjrxUPTcjw==

8mMlK5nDwjjPFTP5jMtAtQ0t/Vs=

c7am8nhhlCo=

UW91trZj6dENxuRdpxOvW1Cf

sjOMUcvq6lYJCZEfV4euFzY=

62nBgPjdmWQkmWElww==

64E8JqA1aruSUvw=

NqI1reXpcR+REye0

8+y1oOsbjgSyEhjXUPTcjw==

Rx9by8gNBwN1VOs=

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader

Xloader payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1556-64-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1556-71-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1396-75-0x0000000000080000-0x00000000000AC000-memory.dmp	xloader
behavioral1/memory/1396-79-0x0000000000080000-0x00000000000AC000-memory.dmp	xloader

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

mstsc.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	mstsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\YXZDLRUH5 = "C:\\Program Files (x86)\\Gmbi4508\\ms2d-.exe"	mstsc.exe

Executes dropped EXE 2 IoCs

Processes:

xnozsgld.exexnozsgld.exe

pid process

1648 xnozsgld.exe
1556 xnozsgld.exe

pid	process
1648	xnozsgld.exe
1556	xnozsgld.exe

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:

xnozsgld.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Control Panel\International\Geo\Nation	xnozsgld.exe

Loads dropped DLL 2 IoCs

Processes:

tmp.exexnozsgld.exe

pid process

1916 tmp.exe
1648 xnozsgld.exe

pid	process
1916	tmp.exe
1648	xnozsgld.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

xnozsgld.exexnozsgld.exemstsc.exe

description	pid	process	target process
PID 1648 set thread context of 1556	1648	xnozsgld.exe	xnozsgld.exe
PID 1556 set thread context of 1260	1556	xnozsgld.exe	Explorer.EXE
PID 1556 set thread context of 1260	1556	xnozsgld.exe	Explorer.EXE
PID 1396 set thread context of 1260	1396	mstsc.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

mstsc.exe

description ioc process

File opened for modification C:\Program Files (x86)\Gmbi4508\ms2d-.exe mstsc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File opened for modification	C:\Program Files (x86)\Gmbi4508\ms2d-.exe	mstsc.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

mstsc.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2292972927-2705560509-2768824231-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	mstsc.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

xnozsgld.exemstsc.exe

pid	process
1556	xnozsgld.exe
1556	xnozsgld.exe
1556	xnozsgld.exe
1396	mstsc.exe
1396	mstsc.exe
1396	mstsc.exe
1396	mstsc.exe
1396	mstsc.exe
1396	mstsc.exe
1396	mstsc.exe
1396	mstsc.exe
1396	mstsc.exe
1396	mstsc.exe
1396	mstsc.exe
1396	mstsc.exe
1396	mstsc.exe
1396	mstsc.exe
1396	mstsc.exe
1396	mstsc.exe
1396	mstsc.exe
1396	mstsc.exe
1396	mstsc.exe
1396	mstsc.exe

Suspicious behavior: MapViewOfSection 9 IoCs

Processes:

xnozsgld.exexnozsgld.exemstsc.exe

pid process

1648 xnozsgld.exe
1556 xnozsgld.exe
1556 xnozsgld.exe
1556 xnozsgld.exe
1556 xnozsgld.exe
1396 mstsc.exe
1396 mstsc.exe
1396 mstsc.exe
1396 mstsc.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

xnozsgld.exemstsc.exe

description pid process

Token: SeDebugPrivilege 1556 xnozsgld.exe
Token: SeDebugPrivilege 1396 mstsc.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1260 Explorer.EXE
1260 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1260 Explorer.EXE
1260 Explorer.EXE

pid	process
1648	xnozsgld.exe
1556	xnozsgld.exe
1556	xnozsgld.exe
1556	xnozsgld.exe
1556	xnozsgld.exe
1396	mstsc.exe
1396	mstsc.exe
1396	mstsc.exe
1396	mstsc.exe

description	pid	process
Token: SeDebugPrivilege	1556	xnozsgld.exe
Token: SeDebugPrivilege	1396	mstsc.exe

pid	process
1260	Explorer.EXE
1260	Explorer.EXE

pid	process
1260	Explorer.EXE
1260	Explorer.EXE

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

tmp.exexnozsgld.exeExplorer.EXEmstsc.exe

description	pid	process	target process
PID 1916 wrote to memory of 1648	1916	tmp.exe	xnozsgld.exe
PID 1916 wrote to memory of 1648	1916	tmp.exe	xnozsgld.exe
PID 1916 wrote to memory of 1648	1916	tmp.exe	xnozsgld.exe
PID 1916 wrote to memory of 1648	1916	tmp.exe	xnozsgld.exe
PID 1648 wrote to memory of 1556	1648	xnozsgld.exe	xnozsgld.exe
PID 1648 wrote to memory of 1556	1648	xnozsgld.exe	xnozsgld.exe
PID 1648 wrote to memory of 1556	1648	xnozsgld.exe	xnozsgld.exe
PID 1648 wrote to memory of 1556	1648	xnozsgld.exe	xnozsgld.exe
PID 1648 wrote to memory of 1556	1648	xnozsgld.exe	xnozsgld.exe
PID 1260 wrote to memory of 1396	1260	Explorer.EXE	mstsc.exe
PID 1260 wrote to memory of 1396	1260	Explorer.EXE	mstsc.exe
PID 1260 wrote to memory of 1396	1260	Explorer.EXE	mstsc.exe
PID 1260 wrote to memory of 1396	1260	Explorer.EXE	mstsc.exe
PID 1396 wrote to memory of 948	1396	mstsc.exe	cmd.exe
PID 1396 wrote to memory of 948	1396	mstsc.exe	cmd.exe
PID 1396 wrote to memory of 948	1396	mstsc.exe	cmd.exe
PID 1396 wrote to memory of 948	1396	mstsc.exe	cmd.exe
PID 1396 wrote to memory of 1772	1396	mstsc.exe	Firefox.exe
PID 1396 wrote to memory of 1772	1396	mstsc.exe	Firefox.exe
PID 1396 wrote to memory of 1772	1396	mstsc.exe	Firefox.exe
PID 1396 wrote to memory of 1772	1396	mstsc.exe	Firefox.exe
PID 1396 wrote to memory of 1772	1396	mstsc.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1260

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1916

C:\Users\Admin\AppData\Local\Temp\xnozsgld.exe
"C:\Users\Admin\AppData\Local\Temp\xnozsgld.exe" C:\Users\Admin\AppData\Local\Temp\ucpha.v
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1648

C:\Users\Admin\AppData\Local\Temp\xnozsgld.exe
"C:\Users\Admin\AppData\Local\Temp\xnozsgld.exe"
4⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1556

C:\Windows\SysWOW64\mstsc.exe
"C:\Windows\SysWOW64\mstsc.exe"
2⤵
- Adds policy 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:1396

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\xnozsgld.exe"
3⤵
PID:948

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1772

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\hcmpu.cqa
Filesize
196KB

MD5
28eed71dacb4522dbf2c1aeca39e2c5d

SHA1
b5633dcf66f1657552ba992c55e7124250c23a35

SHA256
22bfb554d299b3fc4686643b0522384db2c92ebf64bd80475439b8dd9bbe7bc5

SHA512
7f08bc8237868fb6509baafd3c4a01663b0577ebec86aef9cb185bec13acb8c5787604329a85c74a2ebbc3f39933929a2f36ea21513330124bd2d66363e54cae

Download Submit
C:\Users\Admin\AppData\Local\Temp\ucpha.v
Filesize
5KB

MD5
d934356067b6133646fad1aa12371a1e

SHA1
23fe2ea62be0949a32ea6609345a8b8d27ce3757

SHA256
81f2eb3bd3c2135b0d6abdcc4f2e6427a76dac558928d4c8beb648a045010ae5

SHA512
26b50a5599353328bfc4609754ead9efd9e4084e4fdb6a9479ad56ea79aed81648de897e66c3dd1c9de1cdb6eba04855e4498f0d8d09f7804224ba27ceab91d8

Download Submit
C:\Users\Admin\AppData\Local\Temp\xnozsgld.exe
Filesize
253KB

MD5
d8394c44bc790e1bdab00823f689c1bd

SHA1
735d8986424e2ab3440f49a7a720ecaad43d491d

SHA256
234d80febbdd23b49a2ff5db4e51aa33e82cd77ff082ac6e8f32078cdd701007

SHA512
c6dd135932d86f6a7ae2b82045e024fddad3ce7286672c134e8314d2a7a003d237b4b62141b67c7947e6ca1fffa78047e015c5e714cfb56739ef152485cd559e

Download Submit
C:\Users\Admin\AppData\Local\Temp\xnozsgld.exe
Filesize
253KB

MD5
d8394c44bc790e1bdab00823f689c1bd

SHA1
735d8986424e2ab3440f49a7a720ecaad43d491d

SHA256
234d80febbdd23b49a2ff5db4e51aa33e82cd77ff082ac6e8f32078cdd701007

SHA512
c6dd135932d86f6a7ae2b82045e024fddad3ce7286672c134e8314d2a7a003d237b4b62141b67c7947e6ca1fffa78047e015c5e714cfb56739ef152485cd559e

Download Submit
C:\Users\Admin\AppData\Local\Temp\xnozsgld.exe
Filesize
253KB

MD5
d8394c44bc790e1bdab00823f689c1bd

SHA1
735d8986424e2ab3440f49a7a720ecaad43d491d

SHA256
234d80febbdd23b49a2ff5db4e51aa33e82cd77ff082ac6e8f32078cdd701007

SHA512
c6dd135932d86f6a7ae2b82045e024fddad3ce7286672c134e8314d2a7a003d237b4b62141b67c7947e6ca1fffa78047e015c5e714cfb56739ef152485cd559e

Download Submit
\Users\Admin\AppData\Local\Temp\xnozsgld.exe
Filesize
253KB

MD5
d8394c44bc790e1bdab00823f689c1bd

SHA1
735d8986424e2ab3440f49a7a720ecaad43d491d

SHA256
234d80febbdd23b49a2ff5db4e51aa33e82cd77ff082ac6e8f32078cdd701007

SHA512
c6dd135932d86f6a7ae2b82045e024fddad3ce7286672c134e8314d2a7a003d237b4b62141b67c7947e6ca1fffa78047e015c5e714cfb56739ef152485cd559e

Download Submit
\Users\Admin\AppData\Local\Temp\xnozsgld.exe
Filesize
253KB

MD5
d8394c44bc790e1bdab00823f689c1bd

SHA1
735d8986424e2ab3440f49a7a720ecaad43d491d

SHA256
234d80febbdd23b49a2ff5db4e51aa33e82cd77ff082ac6e8f32078cdd701007

SHA512
c6dd135932d86f6a7ae2b82045e024fddad3ce7286672c134e8314d2a7a003d237b4b62141b67c7947e6ca1fffa78047e015c5e714cfb56739ef152485cd559e

Download Submit
memory/948-73-0x0000000000000000-mapping.dmp

Download
memory/1260-67-0x0000000005EA0000-0x0000000005F93000-memory.dmp

Filesize
972KB

Download
memory/1260-80-0x0000000002C60000-0x0000000002CFC000-memory.dmp

Filesize
624KB

Download
memory/1260-78-0x0000000002C60000-0x0000000002CFC000-memory.dmp

Filesize
624KB

Download
memory/1260-69-0x0000000006020000-0x00000000060FE000-memory.dmp

Filesize
888KB

Download
memory/1396-74-0x0000000000F40000-0x0000000001044000-memory.dmp

Filesize
1.0MB

Download
memory/1396-75-0x0000000000080000-0x00000000000AC000-memory.dmp

Filesize
176KB

Download
memory/1396-79-0x0000000000080000-0x00000000000AC000-memory.dmp

Filesize
176KB

Download
memory/1396-77-0x0000000000970000-0x0000000000A00000-memory.dmp

Filesize
576KB

Download
memory/1396-70-0x0000000000000000-mapping.dmp

Download
memory/1396-76-0x0000000000AF0000-0x0000000000DF3000-memory.dmp

Filesize
3.0MB

Download
memory/1556-66-0x0000000000480000-0x0000000000491000-memory.dmp

Filesize
68KB

Download
memory/1556-71-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1556-65-0x0000000000730000-0x0000000000A33000-memory.dmp

Filesize
3.0MB

Download
memory/1556-64-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1556-68-0x00000000006C0000-0x00000000006D1000-memory.dmp

Filesize
68KB

Download
memory/1556-62-0x000000000041FF10-mapping.dmp

Download
memory/1648-56-0x0000000000000000-mapping.dmp

Download
memory/1916-54-0x0000000075C51000-0x0000000075C53000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads