formbook | d11539b688587eec5e9939b6c85f76613cdf16187e8d25afcc52883f8134272e

General

Target

PO23043_.exe
Size

313KB
MD5

c1d14a0b29a7f3829d1361363ec2e9b1
SHA1

11aa2f0448e47835ec84f975c13b9bdb762e7ad3
SHA256

b2d76e91d736201b7e8fb9780594693cfc3106285a4886e9b40007fdd7e56359
SHA512

e85b8aef71f36657e32c8e7c38b34834774e8ffc782bcb34f6e75e2634b6725ddae97dac7f9f73c09099d5a656bde10c5ef5bad068db951a7f48990dc98c916b
SSDEEP

6144:zYa6/oSLCCe6xEoeELdWc9K4TDRnqoW/U6k33K9uuo:zYZre6xEohLNJTDRniG3XN

Score

10^/10

formbook sy22 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

sy22

Decoy

vinteligencia.com

displayfridges.fun

completetip.com

giallozafferrano.com

jizihao1.com

mysticheightstrail.com

fourseasonslb.com

kjnala.shop

mosiacwall.com

vandistreet.com

gracefullytouchedartistry.com

hbiwhwr.shop

mfmz.net

hrmbrillianz.com

funwarsztat.com

polewithcandy.com

ourrajasthan.com

wilhouettteamerica.com

johnnystintshop.com

asgnelwin.com

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/840-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/840-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2052-23-0x00000000000C0000-0x00000000000EF000-memory.dmp	formbook
behavioral1/memory/2052-25-0x00000000000C0000-0x00000000000EF000-memory.dmp	formbook

Executes dropped EXE 2 IoCs

pid	Process
2664	nxbcmmta.exe
840	nxbcmmta.exe

Loads dropped DLL 2 IoCs

pid	Process
1176	PO23043_.exe
2664	nxbcmmta.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2664 set thread context of 840	2664	nxbcmmta.exe	29
PID 840 set thread context of 1400	840	nxbcmmta.exe	18
PID 2052 set thread context of 1400	2052	mstsc.exe	18

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
840	nxbcmmta.exe
840	nxbcmmta.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe
2052	mstsc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1400	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2664	nxbcmmta.exe
840	nxbcmmta.exe
840	nxbcmmta.exe
840	nxbcmmta.exe
2052	mstsc.exe
2052	mstsc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	840	nxbcmmta.exe
Token: SeDebugPrivilege	2052	mstsc.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1176 wrote to memory of 2664	1176	PO23043_.exe	28
PID 1176 wrote to memory of 2664	1176	PO23043_.exe	28
PID 1176 wrote to memory of 2664	1176	PO23043_.exe	28
PID 1176 wrote to memory of 2664	1176	PO23043_.exe	28
PID 2664 wrote to memory of 840	2664	nxbcmmta.exe	29
PID 2664 wrote to memory of 840	2664	nxbcmmta.exe	29
PID 2664 wrote to memory of 840	2664	nxbcmmta.exe	29
PID 2664 wrote to memory of 840	2664	nxbcmmta.exe	29
PID 2664 wrote to memory of 840	2664	nxbcmmta.exe	29
PID 1400 wrote to memory of 2052	1400	Explorer.EXE	30
PID 1400 wrote to memory of 2052	1400	Explorer.EXE	30
PID 1400 wrote to memory of 2052	1400	Explorer.EXE	30
PID 1400 wrote to memory of 2052	1400	Explorer.EXE	30
PID 2052 wrote to memory of 2160	2052	mstsc.exe	31
PID 2052 wrote to memory of 2160	2052	mstsc.exe	31
PID 2052 wrote to memory of 2160	2052	mstsc.exe	31
PID 2052 wrote to memory of 2160	2052	mstsc.exe	31

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1400
- C:\Users\Admin\AppData\Local\Temp\PO23043_.exe
  "C:\Users\Admin\AppData\Local\Temp\PO23043_.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1176
- - C:\Users\Admin\AppData\Local\Temp\nxbcmmta.exe
    "C:\Users\Admin\AppData\Local\Temp\nxbcmmta.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:2664
  - - C:\Users\Admin\AppData\Local\Temp\nxbcmmta.exe
      "C:\Users\Admin\AppData\Local\Temp\nxbcmmta.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:840
- C:\Windows\SysWOW64\mstsc.exe
  "C:\Windows\SysWOW64\mstsc.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2052
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\nxbcmmta.exe"
    3⤵
    PID:2160

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\nxbcmmta.exe

Filesize
180KB

MD5
92a4d1b9f1502d49331f26198f50af02

SHA1
8efb3f2b2ea6371ff6758c3e730e8d53f62d7bd2

SHA256
784a645c5182553682714915342285633521ec9127c5bdbc93dc8d381e8e9000

SHA512
bc42aabb01b177b78f430982954163f2792d7aa754807f0a1eaafbb50ae66e4492e538a7ee7ebb1abaa976d9fdb84a9f4668ba36991117491c2bcd31284cae61

Download Submit
C:\Users\Admin\AppData\Local\Temp\nxbcmmta.exe

Filesize
180KB

MD5
92a4d1b9f1502d49331f26198f50af02

SHA1
8efb3f2b2ea6371ff6758c3e730e8d53f62d7bd2

SHA256
784a645c5182553682714915342285633521ec9127c5bdbc93dc8d381e8e9000

SHA512
bc42aabb01b177b78f430982954163f2792d7aa754807f0a1eaafbb50ae66e4492e538a7ee7ebb1abaa976d9fdb84a9f4668ba36991117491c2bcd31284cae61

Download Submit
C:\Users\Admin\AppData\Local\Temp\nxbcmmta.exe

Filesize
180KB

MD5
92a4d1b9f1502d49331f26198f50af02

SHA1
8efb3f2b2ea6371ff6758c3e730e8d53f62d7bd2

SHA256
784a645c5182553682714915342285633521ec9127c5bdbc93dc8d381e8e9000

SHA512
bc42aabb01b177b78f430982954163f2792d7aa754807f0a1eaafbb50ae66e4492e538a7ee7ebb1abaa976d9fdb84a9f4668ba36991117491c2bcd31284cae61

Download Submit
C:\Users\Admin\AppData\Local\Temp\wzoed.vg

Filesize
205KB

MD5
4a8d933787e89f00dfdad2157c614b88

SHA1
d4f0d32fdca8d06bb67163b618b3f36867dbe12e

SHA256
492ef6ba0ee8ad45b50c18a31410fa7f4b9c271eb313ec9813233cf3313f294f

SHA512
fa57eb941ae02725a66fb9a8796bd4e88f2ebc7182e6e402c074492b2f2e36f83244fadd21d5f3529c123e45db46091decee1c1be547084b1f6c90145eb35a45

Download Submit
\Users\Admin\AppData\Local\Temp\nxbcmmta.exe

Filesize
180KB

MD5
92a4d1b9f1502d49331f26198f50af02

SHA1
8efb3f2b2ea6371ff6758c3e730e8d53f62d7bd2

SHA256
784a645c5182553682714915342285633521ec9127c5bdbc93dc8d381e8e9000

SHA512
bc42aabb01b177b78f430982954163f2792d7aa754807f0a1eaafbb50ae66e4492e538a7ee7ebb1abaa976d9fdb84a9f4668ba36991117491c2bcd31284cae61

Download Submit
\Users\Admin\AppData\Local\Temp\nxbcmmta.exe

Filesize
180KB

MD5
92a4d1b9f1502d49331f26198f50af02

SHA1
8efb3f2b2ea6371ff6758c3e730e8d53f62d7bd2

SHA256
784a645c5182553682714915342285633521ec9127c5bdbc93dc8d381e8e9000

SHA512
bc42aabb01b177b78f430982954163f2792d7aa754807f0a1eaafbb50ae66e4492e538a7ee7ebb1abaa976d9fdb84a9f4668ba36991117491c2bcd31284cae61

Download Submit
memory/840-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/840-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/840-13-0x0000000000930000-0x0000000000C33000-memory.dmp

Filesize
3.0MB

Download
memory/840-16-0x0000000000370000-0x0000000000384000-memory.dmp

Filesize
80KB

Download
memory/1400-18-0x0000000004A10000-0x0000000004B36000-memory.dmp

Filesize
1.1MB

Download
memory/1400-28-0x00000000040D0000-0x00000000042D0000-memory.dmp

Filesize
2.0MB

Download
memory/1400-35-0x000007FE83FF0000-0x000007FE83FFA000-memory.dmp

Filesize
40KB

Download
memory/1400-34-0x000007FEF6960000-0x000007FEF6AA3000-memory.dmp

Filesize
1.3MB

Download
memory/1400-17-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1400-33-0x0000000004B40000-0x0000000004BD9000-memory.dmp

Filesize
612KB

Download
memory/1400-31-0x0000000004B40000-0x0000000004BD9000-memory.dmp

Filesize
612KB

Download
memory/1400-30-0x0000000004B40000-0x0000000004BD9000-memory.dmp

Filesize
612KB

Download
memory/1400-26-0x0000000004A10000-0x0000000004B36000-memory.dmp

Filesize
1.1MB

Download
memory/2052-22-0x0000000000BE0000-0x0000000000CE4000-memory.dmp

Filesize
1.0MB

Download
memory/2052-27-0x0000000000950000-0x00000000009E3000-memory.dmp

Filesize
588KB

Download
memory/2052-25-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download
memory/2052-24-0x00000000020F0000-0x00000000023F3000-memory.dmp

Filesize
3.0MB

Download
memory/2052-23-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download
memory/2052-19-0x0000000000BE0000-0x0000000000CE4000-memory.dmp

Filesize
1.0MB

Download
memory/2664-6-0x00000000001D0000-0x00000000001D2000-memory.dmp

Filesize
8KB

Download

Analysis

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