formbook | d89aa4a7ecfeae581d21b81fb8e134605f601f690cf56dfc6acdfd5a4f0d3ddc

General

Target

q0RW7nS1zyGKYXb.exe
Size

1.1MB
MD5

dbafdcf84343295ad3b48176f9663758
SHA1

2a4d4a5157ba681952ab3f5e547da2f95f4ab2bd
SHA256

d89aa4a7ecfeae581d21b81fb8e134605f601f690cf56dfc6acdfd5a4f0d3ddc
SHA512

fdc09b6c1447ece49f44c2368a52ffe6906b4d898811f953a64450dc11ed7b1e30059508f6e8ce019faa6ba65a0b0879f75f61752283dfd895d0bee5f763c82c
SSDEEP

24576:d2Tw4qcbskQBs6SqM392oWjyvq0cCU4B/zcpKZ:cTqAGsjjEydJzB/z+K

Score

10^/10

formbook xloader zzun loader persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

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==

Extracted

Family

xloader

Version

2.9

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==

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 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1760-62-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1760-63-0x000000000041F6F0-mapping.dmp	xloader
behavioral1/memory/1760-65-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1404-72-0x0000000000090000-0x00000000000BC000-memory.dmp	xloader
behavioral1/memory/1404-77-0x0000000000090000-0x00000000000BC000-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:

help.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	help.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\J8TPYFN8OVE = "C:\\Program Files (x86)\\Fcfv\\update5jg8ftbp.exe"	help.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:

q0RW7nS1zyGKYXb.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Control Panel\International\Geo\Nation	q0RW7nS1zyGKYXb.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

q0RW7nS1zyGKYXb.exeq0RW7nS1zyGKYXb.exehelp.exe

description	pid	process	target process
PID 1044 set thread context of 1760	1044	q0RW7nS1zyGKYXb.exe	q0RW7nS1zyGKYXb.exe
PID 1760 set thread context of 1224	1760	q0RW7nS1zyGKYXb.exe	Explorer.EXE
PID 1404 set thread context of 1224	1404	help.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

help.exe

description ioc process

File opened for modification C:\Program Files (x86)\Fcfv\update5jg8ftbp.exe help.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Fcfv\update5jg8ftbp.exe	help.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

help.exe

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

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

q0RW7nS1zyGKYXb.exeq0RW7nS1zyGKYXb.exehelp.exe

pid	process
1044	q0RW7nS1zyGKYXb.exe
1760	q0RW7nS1zyGKYXb.exe
1760	q0RW7nS1zyGKYXb.exe
1404	help.exe
1404	help.exe
1404	help.exe
1404	help.exe
1404	help.exe
1404	help.exe
1404	help.exe
1404	help.exe
1404	help.exe
1404	help.exe
1404	help.exe
1404	help.exe
1404	help.exe
1404	help.exe
1404	help.exe
1404	help.exe
1404	help.exe
1404	help.exe
1404	help.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

q0RW7nS1zyGKYXb.exehelp.exe

pid process

1760 q0RW7nS1zyGKYXb.exe
1760 q0RW7nS1zyGKYXb.exe
1760 q0RW7nS1zyGKYXb.exe
1404 help.exe
1404 help.exe
1404 help.exe
1404 help.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

q0RW7nS1zyGKYXb.exeq0RW7nS1zyGKYXb.exehelp.exe

description pid process

Token: SeDebugPrivilege 1044 q0RW7nS1zyGKYXb.exe
Token: SeDebugPrivilege 1760 q0RW7nS1zyGKYXb.exe
Token: SeDebugPrivilege 1404 help.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1224 Explorer.EXE
1224 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1224 Explorer.EXE
1224 Explorer.EXE

pid	process
1760	q0RW7nS1zyGKYXb.exe
1760	q0RW7nS1zyGKYXb.exe
1760	q0RW7nS1zyGKYXb.exe
1404	help.exe
1404	help.exe
1404	help.exe
1404	help.exe

description	pid	process
Token: SeDebugPrivilege	1044	q0RW7nS1zyGKYXb.exe
Token: SeDebugPrivilege	1760	q0RW7nS1zyGKYXb.exe
Token: SeDebugPrivilege	1404	help.exe

pid	process
1224	Explorer.EXE
1224	Explorer.EXE

pid	process
1224	Explorer.EXE
1224	Explorer.EXE

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

q0RW7nS1zyGKYXb.exeExplorer.EXEhelp.exe

description	pid	process	target process
PID 1044 wrote to memory of 1760	1044	q0RW7nS1zyGKYXb.exe	q0RW7nS1zyGKYXb.exe
PID 1044 wrote to memory of 1760	1044	q0RW7nS1zyGKYXb.exe	q0RW7nS1zyGKYXb.exe
PID 1044 wrote to memory of 1760	1044	q0RW7nS1zyGKYXb.exe	q0RW7nS1zyGKYXb.exe
PID 1044 wrote to memory of 1760	1044	q0RW7nS1zyGKYXb.exe	q0RW7nS1zyGKYXb.exe
PID 1044 wrote to memory of 1760	1044	q0RW7nS1zyGKYXb.exe	q0RW7nS1zyGKYXb.exe
PID 1044 wrote to memory of 1760	1044	q0RW7nS1zyGKYXb.exe	q0RW7nS1zyGKYXb.exe
PID 1044 wrote to memory of 1760	1044	q0RW7nS1zyGKYXb.exe	q0RW7nS1zyGKYXb.exe
PID 1224 wrote to memory of 1404	1224	Explorer.EXE	help.exe
PID 1224 wrote to memory of 1404	1224	Explorer.EXE	help.exe
PID 1224 wrote to memory of 1404	1224	Explorer.EXE	help.exe
PID 1224 wrote to memory of 1404	1224	Explorer.EXE	help.exe
PID 1404 wrote to memory of 2016	1404	help.exe	cmd.exe
PID 1404 wrote to memory of 2016	1404	help.exe	cmd.exe
PID 1404 wrote to memory of 2016	1404	help.exe	cmd.exe
PID 1404 wrote to memory of 2016	1404	help.exe	cmd.exe
PID 1404 wrote to memory of 1736	1404	help.exe	Firefox.exe
PID 1404 wrote to memory of 1736	1404	help.exe	Firefox.exe
PID 1404 wrote to memory of 1736	1404	help.exe	Firefox.exe
PID 1404 wrote to memory of 1736	1404	help.exe	Firefox.exe
PID 1404 wrote to memory of 1736	1404	help.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:1224

C:\Users\Admin\AppData\Local\Temp\q0RW7nS1zyGKYXb.exe
"C:\Users\Admin\AppData\Local\Temp\q0RW7nS1zyGKYXb.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1044

C:\Users\Admin\AppData\Local\Temp\q0RW7nS1zyGKYXb.exe
"{path}"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1760

C:\Windows\SysWOW64\help.exe
"C:\Windows\SysWOW64\help.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:1404

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\q0RW7nS1zyGKYXb.exe"
3⤵
PID:2016

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1736

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

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1044-54-0x0000000000BA0000-0x0000000000CC0000-memory.dmp

Filesize
1.1MB

Download
memory/1044-55-0x0000000075501000-0x0000000075503000-memory.dmp

Filesize
8KB

Download
memory/1044-56-0x00000000001C0000-0x00000000001D2000-memory.dmp

Filesize
72KB

Download
memory/1044-57-0x0000000005C80000-0x0000000005D2A000-memory.dmp

Filesize
680KB

Download
memory/1044-58-0x0000000004A70000-0x0000000004ACC000-memory.dmp

Filesize
368KB

Download
memory/1224-78-0x0000000004B50000-0x0000000004C66000-memory.dmp

Filesize
1.1MB

Download
memory/1224-76-0x0000000004B50000-0x0000000004C66000-memory.dmp

Filesize
1.1MB

Download
memory/1224-68-0x0000000006B70000-0x0000000006CD5000-memory.dmp

Filesize
1.4MB

Download
memory/1404-71-0x0000000000020000-0x0000000000026000-memory.dmp

Filesize
24KB

Download
memory/1404-77-0x0000000000090000-0x00000000000BC000-memory.dmp

Filesize
176KB

Download
memory/1404-75-0x00000000005D0000-0x0000000000660000-memory.dmp

Filesize
576KB

Download
memory/1404-73-0x0000000000810000-0x0000000000B13000-memory.dmp

Filesize
3.0MB

Download
memory/1404-72-0x0000000000090000-0x00000000000BC000-memory.dmp

Filesize
176KB

Download
memory/1404-69-0x0000000000000000-mapping.dmp

Download
memory/1760-59-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1760-67-0x0000000000270000-0x0000000000281000-memory.dmp

Filesize
68KB

Download
memory/1760-66-0x0000000000CC0000-0x0000000000FC3000-memory.dmp

Filesize
3.0MB

Download
memory/1760-65-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1760-63-0x000000000041F6F0-mapping.dmp

Download
memory/1760-62-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1760-60-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2016-70-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads