formbook | acb23b92beb1de31d7175c94f94854887bc0b2adb90faddc89bf1b14b1bd1a4b

General

Target

acb23b92beb1de31d7175c94f94854887bc0b2adb90faddc89bf1b14b1bd1a4b.exe
Size

1.0MB
MD5

e9e768aa357a7e34348c69e41444964d
SHA1

4930b85e20b7967cf0afb1d9ae9ae57ca4d373c9
SHA256

acb23b92beb1de31d7175c94f94854887bc0b2adb90faddc89bf1b14b1bd1a4b
SHA512

6394564277e7077d9e326cc0f34f3c6ef945ed4d2e6bd812daaef879bb957edd4c8032df14774328799c692cbfb1f784fbf3580e65effdc5d2d42f124f62bb3a
SSDEEP

12288:LKLRCoZzl+CN6XYt8GjKtzp422BxYLWM7Wi9h77:LiCoZzkg8tzpH2BK17L9h77

Score

10^/10

formbook igbn discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

igbn

Decoy

daolangfans.com

creatievecontentpeople.com

cargizmos.net

azure1224.xyz

shopahava.com

recursum.com

rumblerain.com

betmonde396.com

webinarcerdaskanindonesia.com

telemaca.com

hellohurt.com

peaceprairie.com

johntheonlinearborist.com

pilotbxprt.store

creatingsobriety.com

getrightspt.com

104456.com

travelsofwray.com

americagroupperu.com

silberscore.net

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/2972-17-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook
behavioral1/memory/2972-21-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook
behavioral1/memory/2972-25-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook
behavioral1/memory/3064-32-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Executes dropped EXE 1 IoCs

pid	Process
2972	AddInProcess32.exe

Loads dropped DLL 1 IoCs

pid	Process
1172	acb23b92beb1de31d7175c94f94854887bc0b2adb90faddc89bf1b14b1bd1a4b.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1172 set thread context of 2972	1172	acb23b92beb1de31d7175c94f94854887bc0b2adb90faddc89bf1b14b1bd1a4b.exe	30
PID 2972 set thread context of 1248	2972	AddInProcess32.exe	21
PID 2972 set thread context of 1248	2972	AddInProcess32.exe	21
PID 3064 set thread context of 1248	3064	NETSTAT.EXE	21

System Location Discovery: System Language Discovery 1 TTPs 3 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	acb23b92beb1de31d7175c94f94854887bc0b2adb90faddc89bf1b14b1bd1a4b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NETSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
3064	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
1172	acb23b92beb1de31d7175c94f94854887bc0b2adb90faddc89bf1b14b1bd1a4b.exe
1172	acb23b92beb1de31d7175c94f94854887bc0b2adb90faddc89bf1b14b1bd1a4b.exe
2972	AddInProcess32.exe
2972	AddInProcess32.exe
2972	AddInProcess32.exe
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE
3064	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2972	AddInProcess32.exe
2972	AddInProcess32.exe
2972	AddInProcess32.exe
2972	AddInProcess32.exe
3064	NETSTAT.EXE
3064	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1172	acb23b92beb1de31d7175c94f94854887bc0b2adb90faddc89bf1b14b1bd1a4b.exe
Token: SeDebugPrivilege	2972	AddInProcess32.exe
Token: SeDebugPrivilege	3064	NETSTAT.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1172 wrote to memory of 2972	1172	acb23b92beb1de31d7175c94f94854887bc0b2adb90faddc89bf1b14b1bd1a4b.exe	30
PID 1172 wrote to memory of 2972	1172	acb23b92beb1de31d7175c94f94854887bc0b2adb90faddc89bf1b14b1bd1a4b.exe	30
PID 1172 wrote to memory of 2972	1172	acb23b92beb1de31d7175c94f94854887bc0b2adb90faddc89bf1b14b1bd1a4b.exe	30
PID 1172 wrote to memory of 2972	1172	acb23b92beb1de31d7175c94f94854887bc0b2adb90faddc89bf1b14b1bd1a4b.exe	30
PID 1172 wrote to memory of 2972	1172	acb23b92beb1de31d7175c94f94854887bc0b2adb90faddc89bf1b14b1bd1a4b.exe	30
PID 1172 wrote to memory of 2972	1172	acb23b92beb1de31d7175c94f94854887bc0b2adb90faddc89bf1b14b1bd1a4b.exe	30
PID 1172 wrote to memory of 2972	1172	acb23b92beb1de31d7175c94f94854887bc0b2adb90faddc89bf1b14b1bd1a4b.exe	30
PID 1248 wrote to memory of 3064	1248	Explorer.EXE	31
PID 1248 wrote to memory of 3064	1248	Explorer.EXE	31
PID 1248 wrote to memory of 3064	1248	Explorer.EXE	31
PID 1248 wrote to memory of 3064	1248	Explorer.EXE	31
PID 3064 wrote to memory of 2796	3064	NETSTAT.EXE	32
PID 3064 wrote to memory of 2796	3064	NETSTAT.EXE	32
PID 3064 wrote to memory of 2796	3064	NETSTAT.EXE	32
PID 3064 wrote to memory of 2796	3064	NETSTAT.EXE	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1248
- C:\Users\Admin\AppData\Local\Temp\acb23b92beb1de31d7175c94f94854887bc0b2adb90faddc89bf1b14b1bd1a4b.exe
  "C:\Users\Admin\AppData\Local\Temp\acb23b92beb1de31d7175c94f94854887bc0b2adb90faddc89bf1b14b1bd1a4b.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1172
- - C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
    "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2972
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3064
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2796

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\AddInProcess32.exe

Filesize
41KB

MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
memory/1172-19-0x0000000073DB0000-0x000000007449E000-memory.dmp

Filesize
6.9MB

Download
memory/1172-1-0x0000000001030000-0x000000000113E000-memory.dmp

Filesize
1.1MB

Download
memory/1172-3-0x0000000000440000-0x0000000000470000-memory.dmp

Filesize
192KB

Download
memory/1172-5-0x0000000000670000-0x000000000068A000-memory.dmp

Filesize
104KB

Download
memory/1172-6-0x0000000073DB0000-0x000000007449E000-memory.dmp

Filesize
6.9MB

Download
memory/1172-7-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/1172-0-0x0000000073DBE000-0x0000000073DBF000-memory.dmp

Filesize
4KB

Download
memory/1172-2-0x0000000073DB0000-0x000000007449E000-memory.dmp

Filesize
6.9MB

Download
memory/1248-27-0x0000000007DB0000-0x0000000007EE9000-memory.dmp

Filesize
1.2MB

Download
memory/1248-33-0x0000000005490000-0x0000000005599000-memory.dmp

Filesize
1.0MB

Download
memory/1248-28-0x0000000005490000-0x0000000005599000-memory.dmp

Filesize
1.0MB

Download
memory/1248-23-0x0000000007DB0000-0x0000000007EE9000-memory.dmp

Filesize
1.2MB

Download
memory/2972-20-0x0000000000AF0000-0x0000000000DF3000-memory.dmp

Filesize
3.0MB

Download
memory/2972-22-0x0000000000180000-0x0000000000194000-memory.dmp

Filesize
80KB

Download
memory/2972-17-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2972-13-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2972-26-0x00000000001F0000-0x0000000000204000-memory.dmp

Filesize
80KB

Download
memory/2972-21-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2972-25-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2972-11-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2972-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3064-29-0x00000000002C0000-0x00000000002C9000-memory.dmp

Filesize
36KB

Download
memory/3064-30-0x00000000002C0000-0x00000000002C9000-memory.dmp

Filesize
36KB

Download
memory/3064-32-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download

Analysis

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