formbook | 798342d87cf72af042f7ba3d59d4c191e46cc7b11da7e618e595911d3b6a8f4b

General

Target

JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe
Size

445KB
MD5

395812837b0aa6cf4b6a8d3422722949
SHA1

65aeeed97bbd92e2895c7991244579b5f6a466a4
SHA256

798342d87cf72af042f7ba3d59d4c191e46cc7b11da7e618e595911d3b6a8f4b
SHA512

0abf895278479548229544f9d94336088cb8353f2185419de2161bae84700817e190317f2e3ce6ed64e00922b6eb7d4bd27c42c3dc8fa4425900ce88d5786215
SSDEEP

6144:ckfxJlwLX+7szkXV6ufajCf8t00wn90UkKMf2f2LNvNSrhSHGYdSwQiVn7BSE0zF:H0y0mp0t0rnhuvIrUmiv7BSEKw

Score

10^/10

formbook h0gd discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

h0gd

Decoy

hispansud.com

sanslisin156.com

izmediajo.com

fukugyo-kuchicomi.net

zjzmkj.net

powerupinnovations.com

unigradecuracao.net

inspirasimagz.com

isaacnqwilliams.store

john316graphics.net

wcparadise.net

trejoblanco.com

100x100cultura.com

beedivinehomedecor.com

polant.xyz

ascrete.com

www23855.com

emmagx.com

rekotalent.biz

fersamultiservicios.com

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/2084-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2084-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2084-19-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2696-25-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1960 set thread context of 2084	1960	JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe	31
PID 2084 set thread context of 1208	2084	MSBuild.exe	21
PID 2084 set thread context of 1208	2084	MSBuild.exe	21
PID 2696 set thread context of 1208	2696	mstsc.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	mstsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
2084	MSBuild.exe
2084	MSBuild.exe
2084	MSBuild.exe
2696	mstsc.exe
2696	mstsc.exe
2696	mstsc.exe
2696	mstsc.exe
2696	mstsc.exe
2696	mstsc.exe
2696	mstsc.exe
2696	mstsc.exe
2696	mstsc.exe
2696	mstsc.exe
2696	mstsc.exe
2696	mstsc.exe
2696	mstsc.exe
2696	mstsc.exe
2696	mstsc.exe
2696	mstsc.exe
2696	mstsc.exe
2696	mstsc.exe
2696	mstsc.exe
2696	mstsc.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2084	MSBuild.exe
2084	MSBuild.exe
2084	MSBuild.exe
2084	MSBuild.exe
2696	mstsc.exe
2696	mstsc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2084	MSBuild.exe
Token: SeDebugPrivilege	2696	mstsc.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1960 wrote to memory of 2084	1960	JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe	31
PID 1960 wrote to memory of 2084	1960	JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe	31
PID 1960 wrote to memory of 2084	1960	JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe	31
PID 1960 wrote to memory of 2084	1960	JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe	31
PID 1960 wrote to memory of 2084	1960	JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe	31
PID 1960 wrote to memory of 2084	1960	JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe	31
PID 1960 wrote to memory of 2084	1960	JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe	31
PID 1208 wrote to memory of 2696	1208	Explorer.EXE	32
PID 1208 wrote to memory of 2696	1208	Explorer.EXE	32
PID 1208 wrote to memory of 2696	1208	Explorer.EXE	32
PID 1208 wrote to memory of 2696	1208	Explorer.EXE	32
PID 2696 wrote to memory of 2660	2696	mstsc.exe	33
PID 2696 wrote to memory of 2660	2696	mstsc.exe	33
PID 2696 wrote to memory of 2660	2696	mstsc.exe	33
PID 2696 wrote to memory of 2660	2696	mstsc.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1208
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1960
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2084
- C:\Windows\SysWOW64\mstsc.exe
  "C:\Windows\SysWOW64\mstsc.exe"
  2⤵
  - 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:2696
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/1208-16-0x0000000003C20000-0x0000000003D20000-memory.dmp

Filesize
1024KB

Download
memory/1208-26-0x0000000007520000-0x0000000007656000-memory.dmp

Filesize
1.2MB

Download
memory/1208-22-0x0000000007520000-0x0000000007656000-memory.dmp

Filesize
1.2MB

Download
memory/1208-21-0x0000000004F10000-0x0000000005063000-memory.dmp

Filesize
1.3MB

Download
memory/1208-17-0x0000000004F10000-0x0000000005063000-memory.dmp

Filesize
1.3MB

Download
memory/1960-6-0x0000000002170000-0x00000000021C8000-memory.dmp

Filesize
352KB

Download
memory/1960-5-0x0000000074D60000-0x000000007544E000-memory.dmp

Filesize
6.9MB

Download
memory/1960-1-0x0000000000850000-0x00000000008C6000-memory.dmp

Filesize
472KB

Download
memory/1960-2-0x0000000074D60000-0x000000007544E000-memory.dmp

Filesize
6.9MB

Download
memory/1960-3-0x0000000000490000-0x000000000049E000-memory.dmp

Filesize
56KB

Download
memory/1960-0-0x0000000074D6E000-0x0000000074D6F000-memory.dmp

Filesize
4KB

Download
memory/1960-11-0x0000000074D60000-0x000000007544E000-memory.dmp

Filesize
6.9MB

Download
memory/1960-4-0x0000000074D6E000-0x0000000074D6F000-memory.dmp

Filesize
4KB

Download
memory/2084-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2084-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2084-15-0x0000000000190000-0x00000000001A4000-memory.dmp

Filesize
80KB

Download
memory/2084-12-0x0000000000880000-0x0000000000B83000-memory.dmp

Filesize
3.0MB

Download
memory/2084-9-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2084-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2084-20-0x00000000002E0000-0x00000000002F4000-memory.dmp

Filesize
80KB

Download
memory/2084-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2084-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2696-23-0x00000000001A0000-0x00000000002A4000-memory.dmp

Filesize
1.0MB

Download
memory/2696-24-0x00000000001A0000-0x00000000002A4000-memory.dmp

Filesize
1.0MB

Download
memory/2696-25-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download

Analysis

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