formbook | 3290889312a146f7ed60102439cb580f84057c98c530c31cae7461b2764f5ad4

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
29-01-2023 10:05

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General

Target

tmp.exe
Size

249KB
MD5

f020e4ab9dacdc83e6b1a4537b5338bc
SHA1

2006686a3a91ed7892cffc9b1bc68c57d59118b3
SHA256

3290889312a146f7ed60102439cb580f84057c98c530c31cae7461b2764f5ad4
SHA512

b959b9b3cebd08a09dddad4933be828a3ce4d45269d64121cb2009898e2cc0508fd36ee7b3bb1dc00ed32ca7071d59a0173b3d17ac88184b8a083ef64820585a
SSDEEP

6144:/Ya6BvdSq4hdciqjFhWgbFGj9xyD9LDRHOW4zVQ60HIV0yLP:/YLFL4hdcfjGj9xyVFOPWyz

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/1964-64-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1964-71-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/2024-75-0x0000000000180000-0x00000000001AC000-memory.dmp	xloader
behavioral1/memory/2024-79-0x0000000000180000-0x00000000001AC000-memory.dmp	xloader

Executes dropped EXE 3 IoCs

Processes:

ozggicxy.exeozggicxy.exegdi7nmtbv.exe

pid process

1940 ozggicxy.exe
1964 ozggicxy.exe
1268 gdi7nmtbv.exe

pid	process
1940	ozggicxy.exe
1964	ozggicxy.exe
1268	gdi7nmtbv.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:

ozggicxy.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Control Panel\International\Geo\Nation	ozggicxy.exe

Loads dropped DLL 6 IoCs

Processes:

tmp.exeozggicxy.exeWerFault.exe

pid process

1036 tmp.exe
1940 ozggicxy.exe
836 WerFault.exe
836 WerFault.exe
836 WerFault.exe
836 WerFault.exe

pid	process
1036	tmp.exe
1940	ozggicxy.exe
836	WerFault.exe
836	WerFault.exe
836	WerFault.exe
836	WerFault.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

msdt.exe

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\L4XTIT8X7VP = "C:\\Program Files (x86)\\Nljod5zx\\gdi7nmtbv.exe"	msdt.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

ozggicxy.exeozggicxy.exemsdt.exe

description	pid	process	target process
PID 1940 set thread context of 1964	1940	ozggicxy.exe	ozggicxy.exe
PID 1964 set thread context of 1220	1964	ozggicxy.exe	Explorer.EXE
PID 1964 set thread context of 1220	1964	ozggicxy.exe	Explorer.EXE
PID 2024 set thread context of 1220	2024	msdt.exe	Explorer.EXE

Drops file in Program Files directory 2 IoCs

Processes:

msdt.exeExplorer.EXE

description	ioc	process
File opened for modification	C:\Program Files (x86)\Nljod5zx\gdi7nmtbv.exe	msdt.exe
File created	C:\Program Files (x86)\Nljod5zx\gdi7nmtbv.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

836 1268 WerFault.exe gdi7nmtbv.exe

pid	pid_target	process	target process
836	1268	WerFault.exe	gdi7nmtbv.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

msdt.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-3845472200-3839195424-595303356-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	msdt.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

Processes:

ozggicxy.exemsdt.exe

pid	process
1964	ozggicxy.exe
1964	ozggicxy.exe
1964	ozggicxy.exe
2024	msdt.exe
2024	msdt.exe
2024	msdt.exe
2024	msdt.exe
2024	msdt.exe
2024	msdt.exe
2024	msdt.exe
2024	msdt.exe
2024	msdt.exe
2024	msdt.exe
2024	msdt.exe
2024	msdt.exe
2024	msdt.exe
2024	msdt.exe
2024	msdt.exe
2024	msdt.exe
2024	msdt.exe
2024	msdt.exe
2024	msdt.exe
2024	msdt.exe
2024	msdt.exe

Suspicious behavior: MapViewOfSection 9 IoCs

Processes:

ozggicxy.exeozggicxy.exemsdt.exe

pid process

1940 ozggicxy.exe
1964 ozggicxy.exe
1964 ozggicxy.exe
1964 ozggicxy.exe
1964 ozggicxy.exe
2024 msdt.exe
2024 msdt.exe
2024 msdt.exe
2024 msdt.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

ozggicxy.exemsdt.exeExplorer.EXE

description pid process

Token: SeDebugPrivilege 1964 ozggicxy.exe
Token: SeDebugPrivilege 2024 msdt.exe
Token: SeShutdownPrivilege 1220 Explorer.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1220 Explorer.EXE
1220 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1220 Explorer.EXE
1220 Explorer.EXE

pid	process
1940	ozggicxy.exe
1964	ozggicxy.exe
1964	ozggicxy.exe
1964	ozggicxy.exe
1964	ozggicxy.exe
2024	msdt.exe
2024	msdt.exe
2024	msdt.exe
2024	msdt.exe

description	pid	process
Token: SeDebugPrivilege	1964	ozggicxy.exe
Token: SeDebugPrivilege	2024	msdt.exe
Token: SeShutdownPrivilege	1220	Explorer.EXE

pid	process
1220	Explorer.EXE
1220	Explorer.EXE

pid	process
1220	Explorer.EXE
1220	Explorer.EXE

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

tmp.exeozggicxy.exeExplorer.EXEmsdt.exegdi7nmtbv.exe

description	pid	process	target process
PID 1036 wrote to memory of 1940	1036	tmp.exe	ozggicxy.exe
PID 1036 wrote to memory of 1940	1036	tmp.exe	ozggicxy.exe
PID 1036 wrote to memory of 1940	1036	tmp.exe	ozggicxy.exe
PID 1036 wrote to memory of 1940	1036	tmp.exe	ozggicxy.exe
PID 1940 wrote to memory of 1964	1940	ozggicxy.exe	ozggicxy.exe
PID 1940 wrote to memory of 1964	1940	ozggicxy.exe	ozggicxy.exe
PID 1940 wrote to memory of 1964	1940	ozggicxy.exe	ozggicxy.exe
PID 1940 wrote to memory of 1964	1940	ozggicxy.exe	ozggicxy.exe
PID 1940 wrote to memory of 1964	1940	ozggicxy.exe	ozggicxy.exe
PID 1220 wrote to memory of 2024	1220	Explorer.EXE	msdt.exe
PID 1220 wrote to memory of 2024	1220	Explorer.EXE	msdt.exe
PID 1220 wrote to memory of 2024	1220	Explorer.EXE	msdt.exe
PID 1220 wrote to memory of 2024	1220	Explorer.EXE	msdt.exe
PID 2024 wrote to memory of 1008	2024	msdt.exe	cmd.exe
PID 2024 wrote to memory of 1008	2024	msdt.exe	cmd.exe
PID 2024 wrote to memory of 1008	2024	msdt.exe	cmd.exe
PID 2024 wrote to memory of 1008	2024	msdt.exe	cmd.exe
PID 2024 wrote to memory of 1348	2024	msdt.exe	Firefox.exe
PID 2024 wrote to memory of 1348	2024	msdt.exe	Firefox.exe
PID 2024 wrote to memory of 1348	2024	msdt.exe	Firefox.exe
PID 2024 wrote to memory of 1348	2024	msdt.exe	Firefox.exe
PID 2024 wrote to memory of 1348	2024	msdt.exe	Firefox.exe
PID 1220 wrote to memory of 1268	1220	Explorer.EXE	gdi7nmtbv.exe
PID 1220 wrote to memory of 1268	1220	Explorer.EXE	gdi7nmtbv.exe
PID 1220 wrote to memory of 1268	1220	Explorer.EXE	gdi7nmtbv.exe
PID 1220 wrote to memory of 1268	1220	Explorer.EXE	gdi7nmtbv.exe
PID 1268 wrote to memory of 836	1268	gdi7nmtbv.exe	WerFault.exe
PID 1268 wrote to memory of 836	1268	gdi7nmtbv.exe	WerFault.exe
PID 1268 wrote to memory of 836	1268	gdi7nmtbv.exe	WerFault.exe
PID 1268 wrote to memory of 836	1268	gdi7nmtbv.exe	WerFault.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1220

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:1036

C:\Users\Admin\AppData\Local\Temp\ozggicxy.exe
"C:\Users\Admin\AppData\Local\Temp\ozggicxy.exe" C:\Users\Admin\AppData\Local\Temp\rznlc.m
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1940

C:\Users\Admin\AppData\Local\Temp\ozggicxy.exe
"C:\Users\Admin\AppData\Local\Temp\ozggicxy.exe"
4⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1964

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:2024

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\ozggicxy.exe"
3⤵
PID:1008

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1348

C:\Program Files (x86)\Nljod5zx\gdi7nmtbv.exe
"C:\Program Files (x86)\Nljod5zx\gdi7nmtbv.exe"
2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1268 -s 188
3⤵
- Loads dropped DLL
- Program crash
PID:836

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Nljod5zx\gdi7nmtbv.exe
Filesize
50KB

MD5
f73f9940d91bb012db1ea328b3897c82

SHA1
a2168931605a10f3604dc2c24504d82a51ab6e99

SHA256
2cd78183a6fca82b8e05a38466051f56529a1f5843cfd6bf7274ffe30e9abf57

SHA512
e74c2ac031aab4ede16a0b2525a22545b555c3e659fed10079a9921e3620e42b22f2052ec5f930519881a3b7e2dd1afbd0931d1696d99e516466314b90aa217a

Download Submit
C:\Program Files (x86)\Nljod5zx\gdi7nmtbv.exe
Filesize
50KB

MD5
f73f9940d91bb012db1ea328b3897c82

SHA1
a2168931605a10f3604dc2c24504d82a51ab6e99

SHA256
2cd78183a6fca82b8e05a38466051f56529a1f5843cfd6bf7274ffe30e9abf57

SHA512
e74c2ac031aab4ede16a0b2525a22545b555c3e659fed10079a9921e3620e42b22f2052ec5f930519881a3b7e2dd1afbd0931d1696d99e516466314b90aa217a

Download Submit
C:\Users\Admin\AppData\Local\Temp\nfekeauyiy.uih
Filesize
196KB

MD5
62db7e07dd4481e9b594a97c4b97281a

SHA1
0996af042cee334be6c8d71b689e1c3405dba59e

SHA256
e0ab3c275ba03990a2f28abd8f37f8ff078fb8dce7fb939c6029631a5b4018a6

SHA512
90823ffa0232b7c18bb927dfbd87f4e5220bcf8e23f55d6638ac6ca26c29341c2ed80b2039f3893323a315071f64c572cbee70f33dd9fa2c723465a6b476e23a

Download Submit
C:\Users\Admin\AppData\Local\Temp\ozggicxy.exe
Filesize
50KB

MD5
f73f9940d91bb012db1ea328b3897c82

SHA1
a2168931605a10f3604dc2c24504d82a51ab6e99

SHA256
2cd78183a6fca82b8e05a38466051f56529a1f5843cfd6bf7274ffe30e9abf57

SHA512
e74c2ac031aab4ede16a0b2525a22545b555c3e659fed10079a9921e3620e42b22f2052ec5f930519881a3b7e2dd1afbd0931d1696d99e516466314b90aa217a

Download Submit
C:\Users\Admin\AppData\Local\Temp\ozggicxy.exe
Filesize
50KB

MD5
f73f9940d91bb012db1ea328b3897c82

SHA1
a2168931605a10f3604dc2c24504d82a51ab6e99

SHA256
2cd78183a6fca82b8e05a38466051f56529a1f5843cfd6bf7274ffe30e9abf57

SHA512
e74c2ac031aab4ede16a0b2525a22545b555c3e659fed10079a9921e3620e42b22f2052ec5f930519881a3b7e2dd1afbd0931d1696d99e516466314b90aa217a

Download Submit
C:\Users\Admin\AppData\Local\Temp\ozggicxy.exe
Filesize
50KB

MD5
f73f9940d91bb012db1ea328b3897c82

SHA1
a2168931605a10f3604dc2c24504d82a51ab6e99

SHA256
2cd78183a6fca82b8e05a38466051f56529a1f5843cfd6bf7274ffe30e9abf57

SHA512
e74c2ac031aab4ede16a0b2525a22545b555c3e659fed10079a9921e3620e42b22f2052ec5f930519881a3b7e2dd1afbd0931d1696d99e516466314b90aa217a

Download Submit
C:\Users\Admin\AppData\Local\Temp\rznlc.m
Filesize
5KB

MD5
56075b8221603dd51f2e7cc79097c954

SHA1
0df59bf418b3398bb248b63ff834e7dea05596f0

SHA256
0775d03420d1805c24855734fdcbe12f7dc1d1bd150b345274495054b41576dc

SHA512
47bb8745800a315fb7f8b6717a70fa6b5c648309c02954bb41faccd29c42be7d8e6a1d1de1cae946e2893cb0660be93fd6487891364941279656723db004086c

Download Submit
\Program Files (x86)\Nljod5zx\gdi7nmtbv.exe
Filesize
50KB

MD5
f73f9940d91bb012db1ea328b3897c82

SHA1
a2168931605a10f3604dc2c24504d82a51ab6e99

SHA256
2cd78183a6fca82b8e05a38466051f56529a1f5843cfd6bf7274ffe30e9abf57

SHA512
e74c2ac031aab4ede16a0b2525a22545b555c3e659fed10079a9921e3620e42b22f2052ec5f930519881a3b7e2dd1afbd0931d1696d99e516466314b90aa217a

Download Submit
\Program Files (x86)\Nljod5zx\gdi7nmtbv.exe
Filesize
50KB

MD5
f73f9940d91bb012db1ea328b3897c82

SHA1
a2168931605a10f3604dc2c24504d82a51ab6e99

SHA256
2cd78183a6fca82b8e05a38466051f56529a1f5843cfd6bf7274ffe30e9abf57

SHA512
e74c2ac031aab4ede16a0b2525a22545b555c3e659fed10079a9921e3620e42b22f2052ec5f930519881a3b7e2dd1afbd0931d1696d99e516466314b90aa217a

Download Submit
\Program Files (x86)\Nljod5zx\gdi7nmtbv.exe
Filesize
50KB

MD5
f73f9940d91bb012db1ea328b3897c82

SHA1
a2168931605a10f3604dc2c24504d82a51ab6e99

SHA256
2cd78183a6fca82b8e05a38466051f56529a1f5843cfd6bf7274ffe30e9abf57

SHA512
e74c2ac031aab4ede16a0b2525a22545b555c3e659fed10079a9921e3620e42b22f2052ec5f930519881a3b7e2dd1afbd0931d1696d99e516466314b90aa217a

Download Submit
\Program Files (x86)\Nljod5zx\gdi7nmtbv.exe
Filesize
50KB

MD5
f73f9940d91bb012db1ea328b3897c82

SHA1
a2168931605a10f3604dc2c24504d82a51ab6e99

SHA256
2cd78183a6fca82b8e05a38466051f56529a1f5843cfd6bf7274ffe30e9abf57

SHA512
e74c2ac031aab4ede16a0b2525a22545b555c3e659fed10079a9921e3620e42b22f2052ec5f930519881a3b7e2dd1afbd0931d1696d99e516466314b90aa217a

Download Submit
\Users\Admin\AppData\Local\Temp\ozggicxy.exe
Filesize
50KB

MD5
f73f9940d91bb012db1ea328b3897c82

SHA1
a2168931605a10f3604dc2c24504d82a51ab6e99

SHA256
2cd78183a6fca82b8e05a38466051f56529a1f5843cfd6bf7274ffe30e9abf57

SHA512
e74c2ac031aab4ede16a0b2525a22545b555c3e659fed10079a9921e3620e42b22f2052ec5f930519881a3b7e2dd1afbd0931d1696d99e516466314b90aa217a

Download Submit
\Users\Admin\AppData\Local\Temp\ozggicxy.exe
Filesize
50KB

MD5
f73f9940d91bb012db1ea328b3897c82

SHA1
a2168931605a10f3604dc2c24504d82a51ab6e99

SHA256
2cd78183a6fca82b8e05a38466051f56529a1f5843cfd6bf7274ffe30e9abf57

SHA512
e74c2ac031aab4ede16a0b2525a22545b555c3e659fed10079a9921e3620e42b22f2052ec5f930519881a3b7e2dd1afbd0931d1696d99e516466314b90aa217a

Download Submit
memory/836-83-0x0000000000000000-mapping.dmp

Download
memory/1008-73-0x0000000000000000-mapping.dmp

Download
memory/1036-54-0x00000000753C1000-0x00000000753C3000-memory.dmp

Filesize
8KB

Download
memory/1220-67-0x0000000006870000-0x0000000006937000-memory.dmp

Filesize
796KB

Download
memory/1220-69-0x0000000007060000-0x00000000071AB000-memory.dmp

Filesize
1.3MB

Download
memory/1220-78-0x00000000073C0000-0x0000000007546000-memory.dmp

Filesize
1.5MB

Download
memory/1220-80-0x00000000073C0000-0x0000000007546000-memory.dmp

Filesize
1.5MB

Download
memory/1268-81-0x0000000000000000-mapping.dmp

Download
memory/1940-56-0x0000000000000000-mapping.dmp

Download
memory/1964-71-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1964-68-0x0000000000520000-0x0000000000531000-memory.dmp

Filesize
68KB

Download
memory/1964-62-0x000000000041FF10-mapping.dmp

Download
memory/1964-65-0x0000000000990000-0x0000000000C93000-memory.dmp

Filesize
3.0MB

Download
memory/1964-66-0x00000000003C0000-0x00000000003D1000-memory.dmp

Filesize
68KB

Download
memory/1964-64-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2024-70-0x0000000000000000-mapping.dmp

Download
memory/2024-79-0x0000000000180000-0x00000000001AC000-memory.dmp

Filesize
176KB

Download
memory/2024-77-0x0000000001F40000-0x0000000001FD0000-memory.dmp

Filesize
576KB

Download
memory/2024-76-0x0000000002180000-0x0000000002483000-memory.dmp

Filesize
3.0MB

Download
memory/2024-75-0x0000000000180000-0x00000000001AC000-memory.dmp

Filesize
176KB

Download
memory/2024-74-0x0000000000070000-0x0000000000164000-memory.dmp

Filesize
976KB

Download