formbook | b757c82d494f1f23816a87fc609e8f5227fbe921aa80c5fcddd95fde653c8523

General

Target

vbc.exe
Size

374KB
MD5

d815c20f87e50b43e941bcdc45b158e5
SHA1

65b9efbe3f2fba80a2c55c2f5f07aa0e852545d3
SHA256

b757c82d494f1f23816a87fc609e8f5227fbe921aa80c5fcddd95fde653c8523
SHA512

ab36841af3b36a10e702e0a5b6c71a0641ab0f92d155bb51977223e8885b3aed001ed17514f3f9c58f0135b12d4fbd4620841ca2a4ddbdc1908991c9fa5438b1
SSDEEP

6144:MEa0N1T1wMMatrYfPJIGX8wNxVzZXDwUALxxYzwIIHChqzhFsrPDR591:Xp1GaCf7X8wNxFZXpAL/xEqzhwR5H

Score

10^/10

formbook henz rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

henz

Decoy

IxWMb+jVsoinShuZJzk=

TPfKgQZ//oGnKr/J

EsK0WxD5kY65XOW1Td/5CxSUpCUytR7M

KebSmiCP9p8yUw==

HAt/ljkEuqMLHOLCi53Pv8MKX9qk

CY4ogZTwJc4vSw==

WWDIx5UYUDyepntE0YIAPca3/rI=

+Pkr01Lfb2rME7bL

S5nyK0p8jS2xdwQ=

W/oqvlO57LfkLcLHnQ==

zrrwtqkTLwxulm4l8FGopw==

AqucYext8bzFbOKthIm8E6gfVkUHxKY=

OfnjeDs78+RTcz4OHRl+

XKf1wwpZR5hLLjHgmUGOpQ==

JMyhSLoJPTCwn5o9zX2d8i1+

Wk54MBsDhWSVbnIRkQ==

7aaYR/tOhh9piTw5/KHSRwuK2iqgafw7pQ==

hH/EYxN+jC2xdwQ=

S0F4ORqDjS2xdwQ=

0o/UwXnuJ+sJp0cOHRl+

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Executes dropped EXE 2 IoCs

Processes:

ifzaocyiid.exeifzaocyiid.exe

pid process

1948 ifzaocyiid.exe
2032 ifzaocyiid.exe

pid	process
1948	ifzaocyiid.exe
2032	ifzaocyiid.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:

ifzaocyiid.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Control Panel\International\Geo\Nation	ifzaocyiid.exe

Loads dropped DLL 3 IoCs

Processes:

vbc.exeifzaocyiid.exeraserver.exe

pid process

1476 vbc.exe
1948 ifzaocyiid.exe
1984 raserver.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

pid	process
1476	vbc.exe
1948	ifzaocyiid.exe
1984	raserver.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

ifzaocyiid.exeifzaocyiid.exeraserver.exe

description	pid	process	target process
PID 1948 set thread context of 2032	1948	ifzaocyiid.exe	ifzaocyiid.exe
PID 2032 set thread context of 1368	2032	ifzaocyiid.exe	Explorer.EXE
PID 1984 set thread context of 1368	1984	raserver.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

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

raserver.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-999675638-2867687379-27515722-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	raserver.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

Processes:

ifzaocyiid.exeraserver.exe

pid	process
2032	ifzaocyiid.exe
2032	ifzaocyiid.exe
2032	ifzaocyiid.exe
2032	ifzaocyiid.exe
1984	raserver.exe
1984	raserver.exe
1984	raserver.exe
1984	raserver.exe
1984	raserver.exe
1984	raserver.exe
1984	raserver.exe
1984	raserver.exe
1984	raserver.exe
1984	raserver.exe
1984	raserver.exe
1984	raserver.exe
1984	raserver.exe
1984	raserver.exe
1984	raserver.exe
1984	raserver.exe
1984	raserver.exe
1984	raserver.exe
1984	raserver.exe
1984	raserver.exe
1984	raserver.exe
1984	raserver.exe

Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

ifzaocyiid.exeifzaocyiid.exeraserver.exe

pid process

1948 ifzaocyiid.exe
2032 ifzaocyiid.exe
2032 ifzaocyiid.exe
2032 ifzaocyiid.exe
1984 raserver.exe
1984 raserver.exe
1984 raserver.exe
1984 raserver.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ifzaocyiid.exeraserver.exe

description pid process

Token: SeDebugPrivilege 2032 ifzaocyiid.exe
Token: SeDebugPrivilege 1984 raserver.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1368 Explorer.EXE
1368 Explorer.EXE
Suspicious use of SendNotifyMessage 6 IoCs

Processes:

Explorer.EXE

pid process

1368 Explorer.EXE
1368 Explorer.EXE
1368 Explorer.EXE
1368 Explorer.EXE
1368 Explorer.EXE
1368 Explorer.EXE

pid	process
1948	ifzaocyiid.exe
2032	ifzaocyiid.exe
2032	ifzaocyiid.exe
2032	ifzaocyiid.exe
1984	raserver.exe
1984	raserver.exe
1984	raserver.exe
1984	raserver.exe

description	pid	process
Token: SeDebugPrivilege	2032	ifzaocyiid.exe
Token: SeDebugPrivilege	1984	raserver.exe

pid	process
1368	Explorer.EXE
1368	Explorer.EXE

pid	process
1368	Explorer.EXE
1368	Explorer.EXE
1368	Explorer.EXE
1368	Explorer.EXE
1368	Explorer.EXE
1368	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

vbc.exeifzaocyiid.exeExplorer.EXEraserver.exe

description	pid	process	target process
PID 1476 wrote to memory of 1948	1476	vbc.exe	ifzaocyiid.exe
PID 1476 wrote to memory of 1948	1476	vbc.exe	ifzaocyiid.exe
PID 1476 wrote to memory of 1948	1476	vbc.exe	ifzaocyiid.exe
PID 1476 wrote to memory of 1948	1476	vbc.exe	ifzaocyiid.exe
PID 1948 wrote to memory of 2032	1948	ifzaocyiid.exe	ifzaocyiid.exe
PID 1948 wrote to memory of 2032	1948	ifzaocyiid.exe	ifzaocyiid.exe
PID 1948 wrote to memory of 2032	1948	ifzaocyiid.exe	ifzaocyiid.exe
PID 1948 wrote to memory of 2032	1948	ifzaocyiid.exe	ifzaocyiid.exe
PID 1948 wrote to memory of 2032	1948	ifzaocyiid.exe	ifzaocyiid.exe
PID 1368 wrote to memory of 1984	1368	Explorer.EXE	raserver.exe
PID 1368 wrote to memory of 1984	1368	Explorer.EXE	raserver.exe
PID 1368 wrote to memory of 1984	1368	Explorer.EXE	raserver.exe
PID 1368 wrote to memory of 1984	1368	Explorer.EXE	raserver.exe
PID 1984 wrote to memory of 1268	1984	raserver.exe	Firefox.exe
PID 1984 wrote to memory of 1268	1984	raserver.exe	Firefox.exe
PID 1984 wrote to memory of 1268	1984	raserver.exe	Firefox.exe
PID 1984 wrote to memory of 1268	1984	raserver.exe	Firefox.exe
PID 1984 wrote to memory of 1268	1984	raserver.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:1368

C:\Users\Admin\AppData\Local\Temp\vbc.exe
"C:\Users\Admin\AppData\Local\Temp\vbc.exe"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1476

C:\Users\Admin\AppData\Local\Temp\ifzaocyiid.exe
"C:\Users\Admin\AppData\Local\Temp\ifzaocyiid.exe"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1948

C:\Users\Admin\AppData\Local\Temp\ifzaocyiid.exe
"C:\Users\Admin\AppData\Local\Temp\ifzaocyiid.exe"
4⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2032

C:\Windows\SysWOW64\raserver.exe
"C:\Windows\SysWOW64\raserver.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1984

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1268

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Modify Registry

1

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\folsh.i
Filesize
5KB

MD5
43a7a67769159dfc94cb0b76e6217c30

SHA1
9ecf39336f98c65d2c9a2e70c898a792e2087db5

SHA256
10f439fc166ac832b4d0b9feba224f12909747a59aff18f8af4d497e91965c44

SHA512
7b90ceaa78ee235da69665e51d641cdd06766bd83ed2ecd0d4acff3a20851b052f57e0c791a407bccf6c114ed59787efdea436cf81b4c21968efe247ef39be4b

Download Submit
C:\Users\Admin\AppData\Local\Temp\ifzaocyiid.exe
Filesize
343KB

MD5
b83839808ac32d997be852eea015506f

SHA1
b5f38fb9218474972f52f6fc17ae740b97809208

SHA256
fc08697924d8099e9e8445756cef39b2570a6c46c35bd72db1a03e585168d399

SHA512
d96e272c1df63cdfec5b56fdbcd3f3a8c7198a1f87795ca82269a5872ba058ac3860c8bc3c0b8aa09ee46ab353d41114949ea566330692a7bf6d35ccdc156fe4

Download Submit
C:\Users\Admin\AppData\Local\Temp\ifzaocyiid.exe
Filesize
343KB

MD5
b83839808ac32d997be852eea015506f

SHA1
b5f38fb9218474972f52f6fc17ae740b97809208

SHA256
fc08697924d8099e9e8445756cef39b2570a6c46c35bd72db1a03e585168d399

SHA512
d96e272c1df63cdfec5b56fdbcd3f3a8c7198a1f87795ca82269a5872ba058ac3860c8bc3c0b8aa09ee46ab353d41114949ea566330692a7bf6d35ccdc156fe4

Download Submit
C:\Users\Admin\AppData\Local\Temp\ifzaocyiid.exe
Filesize
343KB

MD5
b83839808ac32d997be852eea015506f

SHA1
b5f38fb9218474972f52f6fc17ae740b97809208

SHA256
fc08697924d8099e9e8445756cef39b2570a6c46c35bd72db1a03e585168d399

SHA512
d96e272c1df63cdfec5b56fdbcd3f3a8c7198a1f87795ca82269a5872ba058ac3860c8bc3c0b8aa09ee46ab353d41114949ea566330692a7bf6d35ccdc156fe4

Download Submit
C:\Users\Admin\AppData\Local\Temp\quocykgcgjy.ntm
Filesize
185KB

MD5
ee1994ef6c1d224addfb82ae1c220448

SHA1
562a844d411a7cce4b1376488a4e253598fcf4e4

SHA256
6f2a4748ff988c944daa4dc23baf2bc2ebadc170971cd536fc9df4c60488e9bc

SHA512
d130a49a28d97aa9be4e765c057316c9146f11a31aa5590ab30873bec634dcc6c69a1eb7be1203ee22e7947ffe5e268f31a77c8640c3bdd89a723f90df457dac

Download Submit
\Users\Admin\AppData\Local\Temp\ifzaocyiid.exe
Filesize
343KB

MD5
b83839808ac32d997be852eea015506f

SHA1
b5f38fb9218474972f52f6fc17ae740b97809208

SHA256
fc08697924d8099e9e8445756cef39b2570a6c46c35bd72db1a03e585168d399

SHA512
d96e272c1df63cdfec5b56fdbcd3f3a8c7198a1f87795ca82269a5872ba058ac3860c8bc3c0b8aa09ee46ab353d41114949ea566330692a7bf6d35ccdc156fe4

Download Submit
\Users\Admin\AppData\Local\Temp\ifzaocyiid.exe
Filesize
343KB

MD5
b83839808ac32d997be852eea015506f

SHA1
b5f38fb9218474972f52f6fc17ae740b97809208

SHA256
fc08697924d8099e9e8445756cef39b2570a6c46c35bd72db1a03e585168d399

SHA512
d96e272c1df63cdfec5b56fdbcd3f3a8c7198a1f87795ca82269a5872ba058ac3860c8bc3c0b8aa09ee46ab353d41114949ea566330692a7bf6d35ccdc156fe4

Download Submit
\Users\Admin\AppData\Local\Temp\sqlite3.dll
Filesize
832KB

MD5
07fb6d31f37fb1b4164bef301306c288

SHA1
4cb41af6d63a07324ef6b18b1a1f43ce94e25626

SHA256
06ddf0a370af00d994824605a8e1307ba138f89b2d864539f0d19e8804edac02

SHA512
cab4a7c5805b80851aba5f2c9b001fabc1416f6648d891f49eacc81fe79287c5baa01306a42298da722750b812a4ea85388ffae9200dcf656dd1d5b5b9323353

Download Submit
memory/1368-69-0x00000000042C0000-0x000000000437C000-memory.dmp

Filesize
752KB

Download
memory/1368-80-0x0000000004EB0000-0x0000000004F86000-memory.dmp

Filesize
856KB

Download
memory/1368-78-0x0000000004EB0000-0x0000000004F86000-memory.dmp

Filesize
856KB

Download
memory/1476-54-0x0000000074FB1000-0x0000000074FB3000-memory.dmp

Filesize
8KB

Download
memory/1948-56-0x0000000000000000-mapping.dmp

Download
memory/1984-74-0x0000000000C20000-0x0000000000C3C000-memory.dmp

Filesize
112KB

Download
memory/1984-70-0x0000000000000000-mapping.dmp

Download
memory/1984-75-0x00000000000C0000-0x00000000000ED000-memory.dmp

Filesize
180KB

Download
memory/1984-76-0x0000000002040000-0x0000000002343000-memory.dmp

Filesize
3.0MB

Download
memory/1984-77-0x00000000003D0000-0x000000000045F000-memory.dmp

Filesize
572KB

Download
memory/1984-79-0x00000000000C0000-0x00000000000ED000-memory.dmp

Filesize
180KB

Download
memory/2032-68-0x0000000000130000-0x0000000000140000-memory.dmp

Filesize
64KB

Download
memory/2032-71-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/2032-72-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2032-67-0x0000000000B00000-0x0000000000E03000-memory.dmp

Filesize
3.0MB

Download
memory/2032-66-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/2032-65-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2032-63-0x00000000004012B0-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads