formbook | fb4fddb4cbdf4cfe8a3c658c6634d4a1d653f9fa61c4ca2ecb069770bf3cae57

General

Target

fb4fddb4cbdf4cfe8a3c658c6634d4a1d653f9fa61c4ca2ecb069770bf3cae57.exe
Size

225KB
MD5

c20af4b2b3bcb4bb82ef4a78818caffa
SHA1

ddc2f854e96e649a300c6cba5bc8d57d0af8de58
SHA256

fb4fddb4cbdf4cfe8a3c658c6634d4a1d653f9fa61c4ca2ecb069770bf3cae57
SHA512

e53b8819e810d853f2fdf86e129058b096df025bdcf8ec308d8f69b796b911f52f0e1c60431654ac03caf081abdcbef807cb664f6581d6ff61ba9742cf2f33ab
SSDEEP

3072:qUJoFfWzzl+cSMY7xIsqoh3vpj+WSuW2x96i6e4coO81ju5qoRNir+QKQqjQgWmA:qweEpGxj9pHHeFwVNr7jzUBWnk/fZ

Score

10^/10

formbook fqsu rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

fqsu

Decoy

GhfTqaOqC4FsyoQRW/8=

kbPIpd/8k1C6zJz5mYYdK90ZUA==

VIdg/CoNGeYJHA==

KhzoqndOhw1j43z0ew==

wv8mTDcsX2wJN/Q=

MqBgt6S+3BgGKBQHLZy7Ucg=

GyhOb++nZDi39NPK7dbaKapf

pBtD1UoSTdo3eSp9H7OhRqMV0TAuKMU=

WTzTg1w+fP4fMO0oPPM=

NS/tpGdUwkiMwqmgkxoSzjrQATAuKMU=

MnoSdM1hYn4tdwxjB2fX

3EUfH2EJY17mMf4=

V9/wg2yCQruVszm7V+4=

aNL8pZCGYW4Ej2LD

1Bif9VkmdgVfrJqRvl1GtlTZq1M=

9wHIgmB8EOB2uUVcUfk=

1Fdn15qem+fL1qhrY9xdQmAnVg==

Y32ThttYUUr6PsuRmozlNP74RD+uBz7dOQ==

f5HKyoWNAJLM2qjnZlizsvXDKFs=

mRfaGezap6ZyvJqthZvf

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Blocklisted process makes network request 2 IoCs

flow	pid	Process
9	1988	cmd.exe
22	1988	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
1920	bquztp.exe
1908	bquztp.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

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

Loads dropped DLL 3 IoCs

pid	Process
900	fb4fddb4cbdf4cfe8a3c658c6634d4a1d653f9fa61c4ca2ecb069770bf3cae57.exe
1920	bquztp.exe
1988	cmd.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

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1920 set thread context of 1908	1920	bquztp.exe	28
PID 1908 set thread context of 1420	1908	bquztp.exe	15
PID 1988 set thread context of 1420	1988	cmd.exe	15

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

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

Suspicious behavior: EnumeratesProcesses 26 IoCs

pid	Process
1908	bquztp.exe
1908	bquztp.exe
1908	bquztp.exe
1908	bquztp.exe
1988	cmd.exe
1988	cmd.exe
1988	cmd.exe
1988	cmd.exe
1988	cmd.exe
1988	cmd.exe
1988	cmd.exe
1988	cmd.exe
1988	cmd.exe
1988	cmd.exe
1988	cmd.exe
1988	cmd.exe
1988	cmd.exe
1988	cmd.exe
1988	cmd.exe
1988	cmd.exe
1988	cmd.exe
1988	cmd.exe
1988	cmd.exe
1988	cmd.exe
1988	cmd.exe
1988	cmd.exe

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
1920	bquztp.exe
1908	bquztp.exe
1908	bquztp.exe
1908	bquztp.exe
1988	cmd.exe
1988	cmd.exe
1988	cmd.exe
1988	cmd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1908	bquztp.exe
Token: SeDebugPrivilege	1988	cmd.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1420	Explorer.EXE
1420	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1420	Explorer.EXE
1420	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 900 wrote to memory of 1920	900	fb4fddb4cbdf4cfe8a3c658c6634d4a1d653f9fa61c4ca2ecb069770bf3cae57.exe	27
PID 900 wrote to memory of 1920	900	fb4fddb4cbdf4cfe8a3c658c6634d4a1d653f9fa61c4ca2ecb069770bf3cae57.exe	27
PID 900 wrote to memory of 1920	900	fb4fddb4cbdf4cfe8a3c658c6634d4a1d653f9fa61c4ca2ecb069770bf3cae57.exe	27
PID 900 wrote to memory of 1920	900	fb4fddb4cbdf4cfe8a3c658c6634d4a1d653f9fa61c4ca2ecb069770bf3cae57.exe	27
PID 1920 wrote to memory of 1908	1920	bquztp.exe	28
PID 1920 wrote to memory of 1908	1920	bquztp.exe	28
PID 1920 wrote to memory of 1908	1920	bquztp.exe	28
PID 1920 wrote to memory of 1908	1920	bquztp.exe	28
PID 1920 wrote to memory of 1908	1920	bquztp.exe	28
PID 1420 wrote to memory of 1988	1420	Explorer.EXE	29
PID 1420 wrote to memory of 1988	1420	Explorer.EXE	29
PID 1420 wrote to memory of 1988	1420	Explorer.EXE	29
PID 1420 wrote to memory of 1988	1420	Explorer.EXE	29
PID 1988 wrote to memory of 1820	1988	cmd.exe	32
PID 1988 wrote to memory of 1820	1988	cmd.exe	32
PID 1988 wrote to memory of 1820	1988	cmd.exe	32
PID 1988 wrote to memory of 1820	1988	cmd.exe	32
PID 1988 wrote to memory of 1820	1988	cmd.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1420
- C:\Users\Admin\AppData\Local\Temp\fb4fddb4cbdf4cfe8a3c658c6634d4a1d653f9fa61c4ca2ecb069770bf3cae57.exe
  "C:\Users\Admin\AppData\Local\Temp\fb4fddb4cbdf4cfe8a3c658c6634d4a1d653f9fa61c4ca2ecb069770bf3cae57.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:900
- - C:\Users\Admin\AppData\Local\Temp\bquztp.exe
    "C:\Users\Admin\AppData\Local\Temp\bquztp.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:1920
  - - C:\Users\Admin\AppData\Local\Temp\bquztp.exe
      "C:\Users\Admin\AppData\Local\Temp\bquztp.exe"
      4⤵
      Executes dropped EXE
      Checks computer location settings
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:1908
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\SysWOW64\cmd.exe"
  2⤵
  - Blocklisted process makes network request
  - 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:1988
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1820

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\bquztp.exe

Filesize
6KB

MD5
e31a7d32d2fd851ae1b00ff85dd3a9ca

SHA1
1e63242b754008bfae79a5ab8e7a2ea45cc2dcd3

SHA256
aed72f8afba130aa196db63b1b036450d539c55f3bf9a352df09ce1f9202bddf

SHA512
ab51bcfb7d6fe8ff1f62ba030334594c25347eca882348ae1933c7001f841eab24d429704479bb8e343b03e7192506be48a17ece2c999862ee644ec094ced593

Download Submit
C:\Users\Admin\AppData\Local\Temp\bquztp.exe

Filesize
6KB

MD5
e31a7d32d2fd851ae1b00ff85dd3a9ca

SHA1
1e63242b754008bfae79a5ab8e7a2ea45cc2dcd3

SHA256
aed72f8afba130aa196db63b1b036450d539c55f3bf9a352df09ce1f9202bddf

SHA512
ab51bcfb7d6fe8ff1f62ba030334594c25347eca882348ae1933c7001f841eab24d429704479bb8e343b03e7192506be48a17ece2c999862ee644ec094ced593

Download Submit
C:\Users\Admin\AppData\Local\Temp\bquztp.exe

Filesize
6KB

MD5
e31a7d32d2fd851ae1b00ff85dd3a9ca

SHA1
1e63242b754008bfae79a5ab8e7a2ea45cc2dcd3

SHA256
aed72f8afba130aa196db63b1b036450d539c55f3bf9a352df09ce1f9202bddf

SHA512
ab51bcfb7d6fe8ff1f62ba030334594c25347eca882348ae1933c7001f841eab24d429704479bb8e343b03e7192506be48a17ece2c999862ee644ec094ced593

Download Submit
C:\Users\Admin\AppData\Local\Temp\eggcij.vx

Filesize
185KB

MD5
cfa7847468c5383cd501f8f805e0021a

SHA1
f44e223a9af2db99ac56f2f7927fb64949ab1664

SHA256
58a415b44850c89beb91dbc1c21c81f8476970ea6226645483f268d68a271cd7

SHA512
e4ae5c17d31e45a9dadf72881cd1c42dd8d82095b0068c620b924c90ea328f0e78ddefb3e14f23da28d650bbe273698586327f4cb07dc6098ecd3920eb6e3d98

Download Submit
C:\Users\Admin\AppData\Local\Temp\nzieacxv.p

Filesize
5KB

MD5
b104c03dbda7dcb8f911d3d48ef3cdc5

SHA1
24f0c3f064a2fc7fbb945bcb89a4dc3914519ff2

SHA256
d9225978ab417360cb9fd791ea653ff49f6b2c4df533d0be078e30eca7b0832f

SHA512
a61e358fe6d43c45b7cb0a00d770ff8b9d0696c8b09ef7b1ac42a51ba838b2854b4d61c05ead24dab15041dfdde661f32422da650231c170e2cfc8d325491d66

Download Submit
\Users\Admin\AppData\Local\Temp\bquztp.exe

Filesize
6KB

MD5
e31a7d32d2fd851ae1b00ff85dd3a9ca

SHA1
1e63242b754008bfae79a5ab8e7a2ea45cc2dcd3

SHA256
aed72f8afba130aa196db63b1b036450d539c55f3bf9a352df09ce1f9202bddf

SHA512
ab51bcfb7d6fe8ff1f62ba030334594c25347eca882348ae1933c7001f841eab24d429704479bb8e343b03e7192506be48a17ece2c999862ee644ec094ced593

Download Submit
\Users\Admin\AppData\Local\Temp\bquztp.exe

Filesize
6KB

MD5
e31a7d32d2fd851ae1b00ff85dd3a9ca

SHA1
1e63242b754008bfae79a5ab8e7a2ea45cc2dcd3

SHA256
aed72f8afba130aa196db63b1b036450d539c55f3bf9a352df09ce1f9202bddf

SHA512
ab51bcfb7d6fe8ff1f62ba030334594c25347eca882348ae1933c7001f841eab24d429704479bb8e343b03e7192506be48a17ece2c999862ee644ec094ced593

Download Submit
\Users\Admin\AppData\Local\Temp\sqlite3.dll

Filesize
904KB

MD5
5e5ba61531d74e45b11cadb79e7394a1

SHA1
677224e14aac9dd35f367d5eb1704b36e69356b8

SHA256
99e91ae250c955bd403ec1a2321d6b11fcb715bdcc7cb3f63ffb46b349afde5c

SHA512
712bfe419ba97ecf0ec8323a68743013e8c767da9d986f74ab94d2a395c3086cac2a5823048e0022d3bbcebb55281b9e1f8c87fdc9295c70cc5521b57850bf46

Download Submit
memory/900-54-0x0000000076121000-0x0000000076123000-memory.dmp

Filesize
8KB

Download
memory/1420-76-0x00000000097D0000-0x000000000995A000-memory.dmp

Filesize
1.5MB

Download
memory/1420-74-0x00000000097D0000-0x000000000995A000-memory.dmp

Filesize
1.5MB

Download
memory/1420-68-0x00000000072F0000-0x000000000749A000-memory.dmp

Filesize
1.7MB

Download
memory/1908-66-0x0000000000930000-0x0000000000C33000-memory.dmp

Filesize
3.0MB

Download
memory/1908-67-0x00000000000F0000-0x0000000000100000-memory.dmp

Filesize
64KB

Download
memory/1908-65-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1908-64-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1988-70-0x000000004A480000-0x000000004A4CC000-memory.dmp

Filesize
304KB

Download
memory/1988-71-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/1988-72-0x00000000021E0000-0x00000000024E3000-memory.dmp

Filesize
3.0MB

Download
memory/1988-73-0x00000000003D0000-0x000000000045F000-memory.dmp

Filesize
572KB

Download
memory/1988-75-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download

Analysis

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