formbook | 4c6ea9785fdf124605e0b3e65540926d787d903d47f95df1a95bbfbbc198d0ca

General

Target

UPDATED SOA.exe
Size

237KB
MD5

d7dce4a617bf4fd2c8a461c8100d0875
SHA1

db21cd510a5bb8953fdf63ad0785ba22ccc99403
SHA256

fa3a477577604a91938f7650b04d3dfaa1d8ec12578d3bb2618817529c8b5797
SHA512

0a4055c55a607de7f38df43c898a3e35de536707e5ac55680a74b531e08863477f759b40cbe522f373a86adc57fecc73f49a07d09265d71495c6d3b6553ab9fa
SSDEEP

6144:vYa6fnp4hNwItFltkcQJ4+DGbO7tO23Ni3PmPZGra:vYVnp4HwItTtX1qOIEOxG+

Score

10^/10

formbook s28y rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

s28y

Decoy

whytry.shop

readyconcreto.com

redbudvending.com

prosblogs.com

litescales.sbs

campinglager.beer

serenitysuite.health

starbytescafe.com

youbi.cyou

hg301d.cfd

nissanvideos.com

kedou25.com

relovedresses.com

contourbioinc.com

usrinfo.top

i8ep58.cfd

wildcatcreekhomes.com

mpocash.mobi

shisokj.vip

jiangwan.top

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/436-61-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/436-64-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/964-72-0x00000000000C0000-0x00000000000EF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
1148	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
2356	UPDATED SOA.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2356 set thread context of 436	2356	UPDATED SOA.exe	28
PID 436 set thread context of 1256	436	UPDATED SOA.exe	20
PID 964 set thread context of 1256	964	help.exe	20

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
436	UPDATED SOA.exe
436	UPDATED SOA.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe
964	help.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1256	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2356	UPDATED SOA.exe
436	UPDATED SOA.exe
436	UPDATED SOA.exe
436	UPDATED SOA.exe
964	help.exe
964	help.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	436	UPDATED SOA.exe
Token: SeDebugPrivilege	964	help.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2356 wrote to memory of 436	2356	UPDATED SOA.exe	28
PID 2356 wrote to memory of 436	2356	UPDATED SOA.exe	28
PID 2356 wrote to memory of 436	2356	UPDATED SOA.exe	28
PID 2356 wrote to memory of 436	2356	UPDATED SOA.exe	28
PID 2356 wrote to memory of 436	2356	UPDATED SOA.exe	28
PID 2356 wrote to memory of 436	2356	UPDATED SOA.exe	28
PID 2356 wrote to memory of 436	2356	UPDATED SOA.exe	28
PID 2356 wrote to memory of 436	2356	UPDATED SOA.exe	28
PID 1256 wrote to memory of 964	1256	Explorer.EXE	29
PID 1256 wrote to memory of 964	1256	Explorer.EXE	29
PID 1256 wrote to memory of 964	1256	Explorer.EXE	29
PID 1256 wrote to memory of 964	1256	Explorer.EXE	29
PID 964 wrote to memory of 1148	964	help.exe	30
PID 964 wrote to memory of 1148	964	help.exe	30
PID 964 wrote to memory of 1148	964	help.exe	30
PID 964 wrote to memory of 1148	964	help.exe	30

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1256
- C:\Users\Admin\AppData\Local\Temp\UPDATED SOA.exe
  "C:\Users\Admin\AppData\Local\Temp\UPDATED SOA.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2356
- - C:\Users\Admin\AppData\Local\Temp\UPDATED SOA.exe
    "C:\Users\Admin\AppData\Local\Temp\UPDATED SOA.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:436
- C:\Windows\SysWOW64\help.exe
  "C:\Windows\SysWOW64\help.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:964
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\UPDATED SOA.exe"
    3⤵
    - Deletes itself
    PID:1148

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nso5544.tmp\dvxmcd.dll

Filesize
6KB

MD5
97676329981596a837cd318a00dc86e3

SHA1
aa183bc27f84370ec5df1f10c0efd8b085be5bd9

SHA256
78679a09fe70c5665877949fb3aa958001dae2263502d08330dbd347edf2ac74

SHA512
70d654eda2d8c76c18dd2f45eb4db460693eca197d6b85059075c654c8dd83d291e31642b32a97f6be057f08e002192c33af79c65d89eef3f50d6d9b5ecef38f

Download Submit
memory/436-64-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/436-61-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/436-63-0x0000000000770000-0x0000000000A73000-memory.dmp

Filesize
3.0MB

Download
memory/436-65-0x00000000004A0000-0x00000000004B5000-memory.dmp

Filesize
84KB

Download
memory/964-68-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/964-70-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/964-71-0x0000000000830000-0x0000000000B33000-memory.dmp

Filesize
3.0MB

Download
memory/964-72-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download
memory/964-76-0x00000000003B0000-0x0000000000444000-memory.dmp

Filesize
592KB

Download
memory/1256-66-0x0000000004DC0000-0x0000000004ECF000-memory.dmp

Filesize
1.1MB

Download
memory/1256-77-0x0000000004F80000-0x0000000005071000-memory.dmp

Filesize
964KB

Download
memory/1256-78-0x0000000004F80000-0x0000000005071000-memory.dmp

Filesize
964KB

Download
memory/1256-80-0x0000000004F80000-0x0000000005071000-memory.dmp

Filesize
964KB

Download

Analysis

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