formbook | 76a8adb73b3b2f0d94ae2fceb1fc4c6307c318f102fffa93fb353bf94b204d38

General

Target

OAa3nu595dA7afB.exe
Size

553KB
MD5

1823dce627d29f5d4985501267f7ad9f
SHA1

1ce10042fccf2c8fcb2b0a93723f24b6c3b4ffb3
SHA256

c14ba2023f89dc57df157690e40042b8b090906257c59b6e5834b2212cd3142e
SHA512

88421fa99979a5ed7d55a2dccffbb96af3e72539e5dba61bf7860d2321a2f79deb5e9aae65e3fb9e5a17998a60d87abbbdc7b0dc495c991b4a3813a2ef8edb72
SSDEEP

12288:DMSSBQvlKxIhc8+PzqBpzZCRtDSybgO5Kdw06aDSBaEK:D0ByMstCvDS4h0dbDSB3

Score

10^/10

formbook dn7r discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

dn7r

Decoy

eventphotographerdfw.com

thehalalcoinstaking.com

philipfaziofineart.com

intercoh.com

gaiaseyephotography.com

chatbotforrealestate.com

lovelancemg.com

marlieskasberger.com

elcongoenespanol.info

lepirecredit.com

distribution-concept.com

e99game.com

exit11festival.com

twodollartoothbrushclub.com

cocktailsandlawn.com

performimprove.network

24horas-telefono-11840.com

cosmossify.com

kellenleote.com

perovskite.energy

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/2968-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2968-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2968-21-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2708-27-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2656	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 784 set thread context of 2968	784	OAa3nu595dA7afB.exe	31
PID 2968 set thread context of 1192	2968	OAa3nu595dA7afB.exe	21
PID 2968 set thread context of 1192	2968	OAa3nu595dA7afB.exe	21
PID 2708 set thread context of 1192	2708	ipconfig.exe	21

System Location Discovery: System Language Discovery 1 TTPs 4 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	OAa3nu595dA7afB.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ipconfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OAa3nu595dA7afB.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
2708	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
2968	OAa3nu595dA7afB.exe
2968	OAa3nu595dA7afB.exe
2968	OAa3nu595dA7afB.exe
2708	ipconfig.exe
2708	ipconfig.exe
2708	ipconfig.exe
2708	ipconfig.exe
2708	ipconfig.exe
2708	ipconfig.exe
2708	ipconfig.exe
2708	ipconfig.exe
2708	ipconfig.exe
2708	ipconfig.exe
2708	ipconfig.exe
2708	ipconfig.exe
2708	ipconfig.exe
2708	ipconfig.exe
2708	ipconfig.exe
2708	ipconfig.exe
2708	ipconfig.exe
2708	ipconfig.exe
2708	ipconfig.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2968	OAa3nu595dA7afB.exe
2968	OAa3nu595dA7afB.exe
2968	OAa3nu595dA7afB.exe
2968	OAa3nu595dA7afB.exe
2708	ipconfig.exe
2708	ipconfig.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2968	OAa3nu595dA7afB.exe
Token: SeDebugPrivilege	2708	ipconfig.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 784 wrote to memory of 2968	784	OAa3nu595dA7afB.exe	31
PID 784 wrote to memory of 2968	784	OAa3nu595dA7afB.exe	31
PID 784 wrote to memory of 2968	784	OAa3nu595dA7afB.exe	31
PID 784 wrote to memory of 2968	784	OAa3nu595dA7afB.exe	31
PID 784 wrote to memory of 2968	784	OAa3nu595dA7afB.exe	31
PID 784 wrote to memory of 2968	784	OAa3nu595dA7afB.exe	31
PID 784 wrote to memory of 2968	784	OAa3nu595dA7afB.exe	31
PID 2968 wrote to memory of 2708	2968	OAa3nu595dA7afB.exe	32
PID 2968 wrote to memory of 2708	2968	OAa3nu595dA7afB.exe	32
PID 2968 wrote to memory of 2708	2968	OAa3nu595dA7afB.exe	32
PID 2968 wrote to memory of 2708	2968	OAa3nu595dA7afB.exe	32
PID 2708 wrote to memory of 2656	2708	ipconfig.exe	33
PID 2708 wrote to memory of 2656	2708	ipconfig.exe	33
PID 2708 wrote to memory of 2656	2708	ipconfig.exe	33
PID 2708 wrote to memory of 2656	2708	ipconfig.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1192
- C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe
  "C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:784
- - C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe
    "C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe"
    3⤵
    - 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:2968
  - - C:\Windows\SysWOW64\ipconfig.exe
      "C:\Windows\SysWOW64\ipconfig.exe"
      4⤵
      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:2708
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe"
        5⤵
        Deletes itself
        System Location Discovery: System Language Discovery
        
        PID:2656

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

Replay Monitor

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Downloads

memory/784-14-0x0000000073F30000-0x000000007461E000-memory.dmp

Filesize
6.9MB

Download
memory/784-1-0x0000000001130000-0x00000000011C0000-memory.dmp

Filesize
576KB

Download
memory/784-2-0x0000000073F30000-0x000000007461E000-memory.dmp

Filesize
6.9MB

Download
memory/784-3-0x0000000000580000-0x000000000058A000-memory.dmp

Filesize
40KB

Download
memory/784-4-0x0000000073F3E000-0x0000000073F3F000-memory.dmp

Filesize
4KB

Download
memory/784-5-0x0000000073F30000-0x000000007461E000-memory.dmp

Filesize
6.9MB

Download
memory/784-6-0x0000000005130000-0x00000000051AE000-memory.dmp

Filesize
504KB

Download
memory/784-0-0x0000000073F3E000-0x0000000073F3F000-memory.dmp

Filesize
4KB

Download
memory/1192-23-0x0000000006E40000-0x0000000006FCD000-memory.dmp

Filesize
1.6MB

Download
memory/1192-24-0x0000000006430000-0x0000000006563000-memory.dmp

Filesize
1.2MB

Download
memory/1192-29-0x000007FFFFFDF000-0x000007FFFFFE0000-memory.dmp

Filesize
4KB

Download
memory/1192-28-0x0000000006E40000-0x0000000006FCD000-memory.dmp

Filesize
1.6MB

Download
memory/1192-19-0x0000000006430000-0x0000000006563000-memory.dmp

Filesize
1.2MB

Download
memory/2708-27-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2708-26-0x0000000000940000-0x000000000094A000-memory.dmp

Filesize
40KB

Download
memory/2708-25-0x0000000000940000-0x000000000094A000-memory.dmp

Filesize
40KB

Download
memory/2968-18-0x00000000002B0000-0x00000000002C5000-memory.dmp

Filesize
84KB

Download
memory/2968-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2968-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2968-22-0x0000000000390000-0x00000000003A5000-memory.dmp

Filesize
84KB

Download
memory/2968-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2968-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2968-15-0x00000000008E0000-0x0000000000BE3000-memory.dmp

Filesize
3.0MB

Download
memory/2968-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2968-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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