formbook | 895fafaba3dd9be186361c1532b486678371684b42018ca3902306a1b43b1d63

Analysis

max time kernel
150s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-12-2024 15:32

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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
1932	fujab.exe
2936	RegSvcs.exe
1936	RegSvcs.exe

Loads dropped DLL 4 IoCs

pid	Process
1084	WScript.exe
1932	fujab.exe
1932	fujab.exe
3048	colorcpl.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 7 IoCs

description	pid	Process	procid_target
PID 1932 set thread context of 2936	1932	fujab.exe	34
PID 1932 set thread context of 1936	1932	fujab.exe	33
PID 2936 set thread context of 1236	2936	RegSvcs.exe	21
PID 1936 set thread context of 1236	1936	RegSvcs.exe	21
PID 2936 set thread context of 1236	2936	RegSvcs.exe	21
PID 1936 set thread context of 1236	1936	RegSvcs.exe	21
PID 3048 set thread context of 1236	3048	colorcpl.exe	21

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 6 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	chkdsk.exe
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	colorcpl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.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

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	colorcpl.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
2936	RegSvcs.exe
1936	RegSvcs.exe
2936	RegSvcs.exe
2936	RegSvcs.exe
2936	RegSvcs.exe
1936	RegSvcs.exe
1936	RegSvcs.exe
1936	RegSvcs.exe
2936	RegSvcs.exe
1936	RegSvcs.exe
3048	colorcpl.exe
3048	colorcpl.exe
1824	chkdsk.exe
3048	colorcpl.exe
3048	colorcpl.exe
3048	colorcpl.exe
3048	colorcpl.exe
3048	colorcpl.exe
3048	colorcpl.exe
3048	colorcpl.exe
3048	colorcpl.exe
3048	colorcpl.exe
3048	colorcpl.exe
3048	colorcpl.exe
3048	colorcpl.exe
3048	colorcpl.exe
3048	colorcpl.exe
3048	colorcpl.exe
3048	colorcpl.exe
3048	colorcpl.exe
3048	colorcpl.exe
3048	colorcpl.exe
3048	colorcpl.exe
3048	colorcpl.exe
3048	colorcpl.exe
3048	colorcpl.exe

Suspicious behavior: MapViewOfSection 12 IoCs

pid	Process
2936	RegSvcs.exe
1936	RegSvcs.exe
2936	RegSvcs.exe
1936	RegSvcs.exe
1936	RegSvcs.exe
1936	RegSvcs.exe
3048	colorcpl.exe
2936	RegSvcs.exe
2936	RegSvcs.exe
3048	colorcpl.exe
3048	colorcpl.exe
3048	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2936	RegSvcs.exe
Token: SeDebugPrivilege	1936	RegSvcs.exe
Token: SeDebugPrivilege	3048	colorcpl.exe
Token: SeDebugPrivilege	1824	chkdsk.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1236	Explorer.EXE
1236	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1236	Explorer.EXE
1236	Explorer.EXE

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 2072 wrote to memory of 1084	2072	a52d0bc31a250c5dd5c84c75fca9b965955297d20f582d79849c17fb59c4c04f.exe	30
PID 2072 wrote to memory of 1084	2072	a52d0bc31a250c5dd5c84c75fca9b965955297d20f582d79849c17fb59c4c04f.exe	30
PID 2072 wrote to memory of 1084	2072	a52d0bc31a250c5dd5c84c75fca9b965955297d20f582d79849c17fb59c4c04f.exe	30
PID 2072 wrote to memory of 1084	2072	a52d0bc31a250c5dd5c84c75fca9b965955297d20f582d79849c17fb59c4c04f.exe	30
PID 1084 wrote to memory of 1932	1084	WScript.exe	31
PID 1084 wrote to memory of 1932	1084	WScript.exe	31
PID 1084 wrote to memory of 1932	1084	WScript.exe	31
PID 1084 wrote to memory of 1932	1084	WScript.exe	31
PID 1932 wrote to memory of 1936	1932	fujab.exe	33
PID 1932 wrote to memory of 1936	1932	fujab.exe	33
PID 1932 wrote to memory of 1936	1932	fujab.exe	33
PID 1932 wrote to memory of 1936	1932	fujab.exe	33
PID 1932 wrote to memory of 1936	1932	fujab.exe	33
PID 1932 wrote to memory of 1936	1932	fujab.exe	33
PID 1932 wrote to memory of 1936	1932	fujab.exe	33
PID 1932 wrote to memory of 2936	1932	fujab.exe	34
PID 1932 wrote to memory of 2936	1932	fujab.exe	34
PID 1932 wrote to memory of 2936	1932	fujab.exe	34
PID 1932 wrote to memory of 2936	1932	fujab.exe	34
PID 1932 wrote to memory of 2936	1932	fujab.exe	34
PID 1932 wrote to memory of 2936	1932	fujab.exe	34
PID 1932 wrote to memory of 2936	1932	fujab.exe	34
PID 1932 wrote to memory of 2936	1932	fujab.exe	34
PID 1932 wrote to memory of 2936	1932	fujab.exe	34
PID 1932 wrote to memory of 2936	1932	fujab.exe	34
PID 1932 wrote to memory of 1936	1932	fujab.exe	33
PID 1932 wrote to memory of 1936	1932	fujab.exe	33
PID 1236 wrote to memory of 3048	1236	Explorer.EXE	36
PID 1236 wrote to memory of 3048	1236	Explorer.EXE	36
PID 1236 wrote to memory of 3048	1236	Explorer.EXE	36
PID 1236 wrote to memory of 3048	1236	Explorer.EXE	36
PID 2936 wrote to memory of 1824	2936	RegSvcs.exe	37
PID 2936 wrote to memory of 1824	2936	RegSvcs.exe	37
PID 2936 wrote to memory of 1824	2936	RegSvcs.exe	37
PID 2936 wrote to memory of 1824	2936	RegSvcs.exe	37
PID 3048 wrote to memory of 1580	3048	colorcpl.exe	39
PID 3048 wrote to memory of 1580	3048	colorcpl.exe	39
PID 3048 wrote to memory of 1580	3048	colorcpl.exe	39
PID 3048 wrote to memory of 1580	3048	colorcpl.exe	39
PID 3048 wrote to memory of 1580	3048	colorcpl.exe	39

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1236
- 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:2072
- - 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:1084
  - - 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:1932
    - - 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:1936
    - - 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
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:2936
      - C:\Windows\SysWOW64\chkdsk.exe
        
        "C:\Windows\SysWOW64\chkdsk.exe"
        6⤵
        System Location Discovery: System Language Discovery
        Enumerates system info in registry
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1824
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1808
- C:\Windows\SysWOW64\colorcpl.exe
  "C:\Windows\SysWOW64\colorcpl.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3048
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1580

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Replay Monitor

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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\y4nhg.zip

Filesize
465KB

MD5
92decb824900e1ff4f222f16ed35b211

SHA1
86f6fee1be59dbeb8b058e03d4975309a10c3789

SHA256
724525914ca374b3af253a5ecaa9dc41a2f2ee58ef3a61402c6606e330711360

SHA512
cb7ebad32f19b1aec6330cbe9b5df4a71c106b5ef168b9762aabf42eaecda463e45aee9ffa4f40514b0936a09a629b87543892b151baeda761a9b5e01a522ed6

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
888KB

MD5
9c73b282279e74e40435132e61fda001

SHA1
63c7248e91b68fbde4641e3c5e2dc3e9d38671fa

SHA256
6710d91d77e1937dd5b46d96c0852042985dc78c4c51ce12d3e07a4cdb12c202

SHA512
02f9a01a3a5f74ef994ebb9e5f24c6870e2d48c8b99c429a63e74dad73fb581f0b52b2a86d651cafa414675b70a0e85b2e08c843d07e080fe69ee835e3c91108

Download Submit
memory/1236-191-0x0000000005220000-0x00000000052E1000-memory.dmp

Filesize
772KB

Download
memory/1236-178-0x00000000031D0000-0x00000000032D0000-memory.dmp

Filesize
1024KB

Download
memory/1824-185-0x0000000000840000-0x0000000000847000-memory.dmp

Filesize
28KB

Download
memory/1936-171-0x0000000000400000-0x0000000000938000-memory.dmp

Filesize
5.2MB

Download
memory/1936-176-0x0000000000400000-0x0000000000938000-memory.dmp

Filesize
5.2MB

Download
memory/1936-181-0x0000000000400000-0x0000000000938000-memory.dmp

Filesize
5.2MB

Download
memory/1936-173-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1936-179-0x0000000000400000-0x0000000000938000-memory.dmp

Filesize
5.2MB

Download
memory/2936-163-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2936-180-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2936-167-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2936-168-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2936-177-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2936-165-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3048-182-0x0000000000620000-0x0000000000638000-memory.dmp

Filesize
96KB

Download
memory/3048-184-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/3048-236-0x0000000061E00000-0x0000000061ECA000-memory.dmp

Filesize
808KB

Download