formbook | 008eee66fc8358a7cda63d1e33042f3306e853e85864083cb600257a60bd615f

Analysis

max time kernel
147s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 00:45

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General

Target

a52d0bc31a250c5dd5c84c75fca9b965955297d20f582d79849c17fb59c4c04f.exe
Size

1.2MB
MD5

8f6f8bc43de5fbdddedb774a22e3dca1
SHA1

3f48029084649e39963710b0ae114b4663d48e68
SHA256

a52d0bc31a250c5dd5c84c75fca9b965955297d20f582d79849c17fb59c4c04f
SHA512

ff48e557c37a8ebda2d9504727681dca35353003e87369e5462fb20a1c4746fb998200130b23518288a2bf7c4af06e8853937251af7b2c17e94a46d39b991797
SSDEEP

24576:7AOcZX4ctcwhwheT60L/2NgeSMj5HHeg/cbGOSMIEn:dPwhUwvfe/5HdYGOSMV

Score

10^/10

formbook ubpr discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

ubpr

Decoy

ptpVli2do9q89N0=

+CSLnNslIIErRTE3deUw4HXnuqwqG4+WpQ==

5IBw+rDmyajH6J9b0Gc0

ITivu/UzzGQKCQ==

qNw+VJ7Ni+WT3pA2e/8=

6VzmXNT+607aCN1UmHCt1CjO

a+xfszZjSqdZhCfX5fXnJkJFIsuN8Ns=

DLyp4MD0xUCL6olI

kysKo0J45suL6olI

oE/eN+zqkP2lyG6YYSalUA==

Rko77gUFcKTQFA==

cW14AsnTkUOf0N6ODWjpj7S6nRI=

M9yx/sTJbmx2vzUeWQ==

SQJdWnStlfaz6J0M04r3MN8=

FLhBiiYfyjfZFOdgHU1SfmVhAGgV

nKgaME1YHRs+cHTkn4oI3ibO

vuZIRIyKMaBGiUl9iaiZxNc=

UPnZdBQV1nzxKB1N

iARlleEZxTSL6olI

w5hz+KfftpWkwox0yH7vo0GrwW7RjWVk

Signatures

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

Checks computer location settings 2 TTPs 2 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-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\International\Geo\Nation	RegSvcs.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\International\Geo\Nation	RegSvcs.exe

Executes dropped EXE 3 IoCs

pid	Process
1576	fujab.exe
1740	RegSvcs.exe
1892	RegSvcs.exe

Loads dropped DLL 4 IoCs

pid	Process
2308	WScript.exe
1576	fujab.exe
1576	fujab.exe
2960	ipconfig.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WindowsUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4_19\\fujab.exe C:\\Users\\Admin\\AppData\\Local\\Temp\\4_19\\dkkwd.mkd"	fujab.exe

Suspicious use of SetThreadContext 6 IoCs

description	pid	Process	procid_target
PID 1576 set thread context of 1740	1576	fujab.exe	33
PID 1576 set thread context of 1892	1576	fujab.exe	32
PID 1892 set thread context of 1128	1892	RegSvcs.exe	20
PID 1740 set thread context of 1128	1740	RegSvcs.exe	20
PID 1892 set thread context of 1128	1892	RegSvcs.exe	20
PID 2960 set thread context of 1128	2960	ipconfig.exe	20

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a52d0bc31a250c5dd5c84c75fca9b965955297d20f582d79849c17fb59c4c04f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fujab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ipconfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chkdsk.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
2960	ipconfig.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 34 IoCs

pid	Process
1740	RegSvcs.exe
1892	RegSvcs.exe
1892	RegSvcs.exe
1892	RegSvcs.exe
1892	RegSvcs.exe
1740	RegSvcs.exe
1740	RegSvcs.exe
1740	RegSvcs.exe
2960	ipconfig.exe
2960	ipconfig.exe
1892	RegSvcs.exe
1400	chkdsk.exe
2960	ipconfig.exe
2960	ipconfig.exe
2960	ipconfig.exe
2960	ipconfig.exe
2960	ipconfig.exe
2960	ipconfig.exe
2960	ipconfig.exe
2960	ipconfig.exe
2960	ipconfig.exe
2960	ipconfig.exe
2960	ipconfig.exe
2960	ipconfig.exe
2960	ipconfig.exe
2960	ipconfig.exe
2960	ipconfig.exe
2960	ipconfig.exe
2960	ipconfig.exe
2960	ipconfig.exe
2960	ipconfig.exe
2960	ipconfig.exe
2960	ipconfig.exe
2960	ipconfig.exe

Suspicious behavior: MapViewOfSection 11 IoCs

pid	Process
1892	RegSvcs.exe
1740	RegSvcs.exe
1740	RegSvcs.exe
1740	RegSvcs.exe
2960	ipconfig.exe
1892	RegSvcs.exe
1892	RegSvcs.exe
1892	RegSvcs.exe
2960	ipconfig.exe
2960	ipconfig.exe
2960	ipconfig.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1892	RegSvcs.exe
Token: SeDebugPrivilege	1740	RegSvcs.exe
Token: SeDebugPrivilege	2960	ipconfig.exe
Token: SeDebugPrivilege	1400	chkdsk.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 2308	2328	a52d0bc31a250c5dd5c84c75fca9b965955297d20f582d79849c17fb59c4c04f.exe	30
PID 2328 wrote to memory of 2308	2328	a52d0bc31a250c5dd5c84c75fca9b965955297d20f582d79849c17fb59c4c04f.exe	30
PID 2328 wrote to memory of 2308	2328	a52d0bc31a250c5dd5c84c75fca9b965955297d20f582d79849c17fb59c4c04f.exe	30
PID 2328 wrote to memory of 2308	2328	a52d0bc31a250c5dd5c84c75fca9b965955297d20f582d79849c17fb59c4c04f.exe	30
PID 2308 wrote to memory of 1576	2308	WScript.exe	31
PID 2308 wrote to memory of 1576	2308	WScript.exe	31
PID 2308 wrote to memory of 1576	2308	WScript.exe	31
PID 2308 wrote to memory of 1576	2308	WScript.exe	31
PID 1576 wrote to memory of 1892	1576	fujab.exe	32
PID 1576 wrote to memory of 1892	1576	fujab.exe	32
PID 1576 wrote to memory of 1892	1576	fujab.exe	32
PID 1576 wrote to memory of 1892	1576	fujab.exe	32
PID 1576 wrote to memory of 1892	1576	fujab.exe	32
PID 1576 wrote to memory of 1892	1576	fujab.exe	32
PID 1576 wrote to memory of 1892	1576	fujab.exe	32
PID 1576 wrote to memory of 1740	1576	fujab.exe	33
PID 1576 wrote to memory of 1740	1576	fujab.exe	33
PID 1576 wrote to memory of 1740	1576	fujab.exe	33
PID 1576 wrote to memory of 1740	1576	fujab.exe	33
PID 1576 wrote to memory of 1740	1576	fujab.exe	33
PID 1576 wrote to memory of 1740	1576	fujab.exe	33
PID 1576 wrote to memory of 1740	1576	fujab.exe	33
PID 1576 wrote to memory of 1740	1576	fujab.exe	33
PID 1576 wrote to memory of 1740	1576	fujab.exe	33
PID 1576 wrote to memory of 1740	1576	fujab.exe	33
PID 1576 wrote to memory of 1892	1576	fujab.exe	32
PID 1576 wrote to memory of 1892	1576	fujab.exe	32
PID 1128 wrote to memory of 2960	1128	Explorer.EXE	34
PID 1128 wrote to memory of 2960	1128	Explorer.EXE	34
PID 1128 wrote to memory of 2960	1128	Explorer.EXE	34
PID 1128 wrote to memory of 2960	1128	Explorer.EXE	34
PID 1128 wrote to memory of 1400	1128	Explorer.EXE	36
PID 1128 wrote to memory of 1400	1128	Explorer.EXE	36
PID 1128 wrote to memory of 1400	1128	Explorer.EXE	36
PID 1128 wrote to memory of 1400	1128	Explorer.EXE	36
PID 2960 wrote to memory of 816	2960	ipconfig.exe	38
PID 2960 wrote to memory of 816	2960	ipconfig.exe	38
PID 2960 wrote to memory of 816	2960	ipconfig.exe	38
PID 2960 wrote to memory of 816	2960	ipconfig.exe	38
PID 2960 wrote to memory of 816	2960	ipconfig.exe	38

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1128
- C:\Users\Admin\AppData\Local\Temp\a52d0bc31a250c5dd5c84c75fca9b965955297d20f582d79849c17fb59c4c04f.exe
  "C:\Users\Admin\AppData\Local\Temp\a52d0bc31a250c5dd5c84c75fca9b965955297d20f582d79849c17fb59c4c04f.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2328
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\temp\4_19\dqpjc.vbe"
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2308
  - - C:\Users\Admin\AppData\Local\Temp\4_19\fujab.exe
      "C:\Users\Admin\AppData\Local\Temp\4_19\fujab.exe" dkkwd.mkd
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1576
    - - C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
        
        "C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"
        5⤵
        Checks computer location settings
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of AdjustPrivilegeToken
        
        PID:1892
    - - C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
        
        "C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"
        5⤵
        Checks computer location settings
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of AdjustPrivilegeToken
        
        PID:1740
- C:\Windows\SysWOW64\ipconfig.exe
  "C:\Windows\SysWOW64\ipconfig.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2960
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:816
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1400

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\4_19\ebmbjbx.ppt

Filesize
53KB

MD5
5fedb72dfc6e91cd725c629f14bb8193

SHA1
183be10969a92612c99b454fa9c373cb51a14442

SHA256
24f8a3e3028e79f6733323f442b256d15a415b8146144e6aa5faea8607d27e1c

SHA512
fdda6c45f7f92587dc513e936998772841d4470f609e52c8cc1642ce96bebfba46d8ac9e0aec2a5e3948184f0e56d782789c1f550392def6de25effe386867bd

Download Submit
C:\Users\Admin\AppData\Local\Temp\4_19\fujab.exe

Filesize
1.1MB

MD5
b5b4f7b97106aff4bd860cff0e13dcdc

SHA1
42ca977e0d14bde5d5831b7fe10f516186df3fc5

SHA256
1dbad30b09c655ff987f25c312f56e9695d60105c240686d05d33941c854fa73

SHA512
3e6742aea38c0cbfee8e5cb8f11d328c947c7e4fcca4604b498a7e254aacfe53cc8fc6171d5ed2db7755abb510c09036bfbb1e5a9d9b7b47a587b43c828e3185

Download Submit
C:\Users\Admin\AppData\Local\Temp\4_19\hpblwtbikv.pii

Filesize
370KB

MD5
87a128053cdadb9f63e49d0fbe028193

SHA1
32a619ae4d4ea69460ef07407bf3e609d1665a5d

SHA256
d267e67c2a99ef4a9dbf8546a2a8c9efb5cdd004b9b7cdec8539e2f248711398

SHA512
9d41d5b19268bea794c4d566f2dc3902d16abf0ed0b14ef762b7ec824212291fbc647f55640f6c24f08acb7e489c78893beb99bbe5f9df00b09e65c1692e18cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\obctjle.zip

Filesize
465KB

MD5
9e480b43cbe052e9ab25a0b982132e4d

SHA1
511ed863e48b8755e43b093238b923339c1bf846

SHA256
d76c2b3b27f279cbaabaa2d53c93e4bb7f2d8336e5aff7c74d7a16a2dbfbfb1c

SHA512
92a2753d125fec5a77945a1724dd85d07fd672583666029e313903584cf8e872fae9f3bb1db00cb9cde747edd4e3e95c8ffc3aa2867ce9212504d557e2adc8fb

Download Submit
C:\Users\Admin\AppData\Local\temp\4_19\dqpjc.vbe

Filesize
21KB

MD5
61b8d81488663b063944b798ca13f581

SHA1
fab6888a27ca56d2b4ae0b7103ac77ed19939bac

SHA256
f61e53b8d0b481399eef43cdbfb19d3c452fe6afd067e6860657dc47bacd0e7f

SHA512
f65f16315aee56367e9b76390c1cdccf91b9deb00d865f976af5b9f07f916bcf52ba7d65833b020febac2e045f7f1710feaa7d4358b4b01ef54a1f7100511b6b

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

Filesize
44KB

MD5
0e06054beb13192588e745ee63a84173

SHA1
30b7d4d1277bafd04a83779fd566a1f834a8d113

SHA256
c5d6d56ded55fbd6c150ee3a0eb2e5671cae83106be2be4d70ce50aa50bab768

SHA512
251a112f3f037e62ff67a467389e47a56afb344bc942b17efa9bd2970494718b26bbee9adc3ac35f93ee4d2114aa426b6d0ea4bafad294b6c118a15f1977c215

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

Filesize
890KB

MD5
8402a6aa76d7787ff03943dd129e3d83

SHA1
895338cb761d62930ca93918011fd2cd33d5b30c

SHA256
49ff99d5b24f4f7d5a8ea175f35a6548c74b04e5c621c60121b5088dab19b4eb

SHA512
39bbe90385be35492825929296aae771fb4afb00a1f6a48f0e4ec17bc1097c3a32cea3b22033116c82695e66acbd6c847483a8da21e7302240467b58e39169ea

Download Submit
memory/1128-192-0x0000000006FC0000-0x00000000070DD000-memory.dmp

Filesize
1.1MB

Download
memory/1128-179-0x0000000006420000-0x000000000659C000-memory.dmp

Filesize
1.5MB

Download
memory/1400-185-0x0000000000EE0000-0x0000000000EE7000-memory.dmp

Filesize
28KB

Download
memory/1740-167-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1740-165-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1740-168-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1740-163-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1740-178-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1892-177-0x0000000000400000-0x0000000000969000-memory.dmp

Filesize
5.4MB

Download
memory/1892-183-0x0000000000400000-0x0000000000969000-memory.dmp

Filesize
5.4MB

Download
memory/1892-173-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1892-174-0x0000000000400000-0x0000000000969000-memory.dmp

Filesize
5.4MB

Download
memory/1892-171-0x0000000000400000-0x0000000000969000-memory.dmp

Filesize
5.4MB

Download
memory/2960-182-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/2960-180-0x00000000009C0000-0x00000000009CA000-memory.dmp

Filesize
40KB

Download
memory/2960-238-0x0000000061E00000-0x0000000061ECA000-memory.dmp

Filesize
808KB

Download