formbook | 07daaf1983dc5ad5374f4776d4e1a3f74a8933891cf1b497129358702bdbc33a

General

Target

DHL Shipment Delivery Notification 27-9-23.exe
Size

323KB
MD5

d500caad040c54a8a064bb1ae1e02277
SHA1

02f4722d98277480d4d128e3321f156e0471bdde
SHA256

c261ace97411301444d9dfa50d29f9a0328e83ddf45bf15128ad9d796d050461
SHA512

1898e9b94b4cd314327473063b3d800f5eb91a7b5044d72f801251c0a42c8211646974ddd753a0f80dfdc647a056032d3041d41ecec7a890bca78c6751c4cde3
SSDEEP

6144:BnPdudwDs9iDkylpSqHCJLYFn+dBfSVuMKdWKPcmr5tT/RIQzNfov32ZzjWusiD/:BnPdw9iAmpbHCJLQneBaW8KPc2tlIQzp

Score

10^/10

formbook sn26 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

sn26

Decoy

resenha10.bet

gulshan-rajput.com

xbus.tech

z813my.cfd

wlxzjlny.cfd

auntengotiempo.com

canada-reservation.com

thegiftcompany.shop

esthersilveirapropiedades.com

1wapws.top

ymjblnvo.cfd

termokimik.net

kushiro-artist-school.com

bmmboo.com

caceresconstructionservices.com

kentuckywalkabout.com

bringyourcart.com

miamiwinetour.com

bobcatsocial.site

thirdmind.network

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
behavioral2/memory/3464-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3464-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1164-18-0x0000000000AF0000-0x0000000000B1F000-memory.dmp	formbook
behavioral2/memory/1164-22-0x0000000000AF0000-0x0000000000B1F000-memory.dmp	formbook

Executes dropped EXE 2 IoCs

pid	Process
4256	wdjjinav.exe
3464	wdjjinav.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4256 set thread context of 3464	4256	wdjjinav.exe	87
PID 3464 set thread context of 3196	3464	wdjjinav.exe	31
PID 1164 set thread context of 3196	1164	wlanext.exe	31

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 46 IoCs

pid	Process
3464	wdjjinav.exe
3464	wdjjinav.exe
3464	wdjjinav.exe
3464	wdjjinav.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe
1164	wlanext.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3196	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4256	wdjjinav.exe
3464	wdjjinav.exe
3464	wdjjinav.exe
3464	wdjjinav.exe
1164	wlanext.exe
1164	wlanext.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3464	wdjjinav.exe
Token: SeDebugPrivilege	1164	wlanext.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3196	Explorer.EXE

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 5004 wrote to memory of 4256	5004	DHL Shipment Delivery Notification 27-9-23.exe	86
PID 5004 wrote to memory of 4256	5004	DHL Shipment Delivery Notification 27-9-23.exe	86
PID 5004 wrote to memory of 4256	5004	DHL Shipment Delivery Notification 27-9-23.exe	86
PID 4256 wrote to memory of 3464	4256	wdjjinav.exe	87
PID 4256 wrote to memory of 3464	4256	wdjjinav.exe	87
PID 4256 wrote to memory of 3464	4256	wdjjinav.exe	87
PID 4256 wrote to memory of 3464	4256	wdjjinav.exe	87
PID 3196 wrote to memory of 1164	3196	Explorer.EXE	91
PID 3196 wrote to memory of 1164	3196	Explorer.EXE	91
PID 3196 wrote to memory of 1164	3196	Explorer.EXE	91
PID 1164 wrote to memory of 4620	1164	wlanext.exe	93
PID 1164 wrote to memory of 4620	1164	wlanext.exe	93
PID 1164 wrote to memory of 4620	1164	wlanext.exe	93

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3196
- C:\Users\Admin\AppData\Local\Temp\DHL Shipment Delivery Notification 27-9-23.exe
  "C:\Users\Admin\AppData\Local\Temp\DHL Shipment Delivery Notification 27-9-23.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5004
- - C:\Users\Admin\AppData\Local\Temp\wdjjinav.exe
    "C:\Users\Admin\AppData\Local\Temp\wdjjinav.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:4256
  - - C:\Users\Admin\AppData\Local\Temp\wdjjinav.exe
      "C:\Users\Admin\AppData\Local\Temp\wdjjinav.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:3464
- C:\Windows\SysWOW64\wlanext.exe
  "C:\Windows\SysWOW64\wlanext.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1164
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\wdjjinav.exe"
    3⤵
    PID:4620

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\dgiikp.n

Filesize
205KB

MD5
b791c639d78cc21f869f2e5666ed72c5

SHA1
86aefeb3b6b2f6f008c60949ae26461cf88c7cdf

SHA256
2104e7a2b6fb3f502fce6daba82b67039da9ee9db45ef6b087b5907b44b7b4c4

SHA512
5eb0fd6c37e4bb273c19a1778867c8dcb53a0deb2b66aeae27b48094e6f7eec18357c4a034731dcc150223d3dcc6f8302be0c9fe4aa9f2d2b1609e74412ef457

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

Filesize
194KB

MD5
d9360632962b8f895b4f33b76de6438e

SHA1
0a205e7d5436f0914a3000de9801424625a2eda4

SHA256
1b990c7256969865617929a408a88709db6de3f9fb1c435b6d255940e54e1f00

SHA512
4dce8a522d6edab9174ac7aa4615644d92504694dd2d76917aec9736e430f66207d697e0157855d9d00e6bb475845833382836157df89aae19fcabaa06739166

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

Filesize
194KB

MD5
d9360632962b8f895b4f33b76de6438e

SHA1
0a205e7d5436f0914a3000de9801424625a2eda4

SHA256
1b990c7256969865617929a408a88709db6de3f9fb1c435b6d255940e54e1f00

SHA512
4dce8a522d6edab9174ac7aa4615644d92504694dd2d76917aec9736e430f66207d697e0157855d9d00e6bb475845833382836157df89aae19fcabaa06739166

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

Filesize
194KB

MD5
d9360632962b8f895b4f33b76de6438e

SHA1
0a205e7d5436f0914a3000de9801424625a2eda4

SHA256
1b990c7256969865617929a408a88709db6de3f9fb1c435b6d255940e54e1f00

SHA512
4dce8a522d6edab9174ac7aa4615644d92504694dd2d76917aec9736e430f66207d697e0157855d9d00e6bb475845833382836157df89aae19fcabaa06739166

Download Submit
memory/1164-15-0x00000000007B0000-0x00000000007C7000-memory.dmp

Filesize
92KB

Download
memory/1164-17-0x00000000007B0000-0x00000000007C7000-memory.dmp

Filesize
92KB

Download
memory/1164-23-0x0000000001060000-0x00000000010F4000-memory.dmp

Filesize
592KB

Download
memory/1164-22-0x0000000000AF0000-0x0000000000B1F000-memory.dmp

Filesize
188KB

Download
memory/1164-19-0x00000000012C0000-0x000000000160A000-memory.dmp

Filesize
3.3MB

Download
memory/1164-18-0x0000000000AF0000-0x0000000000B1F000-memory.dmp

Filesize
188KB

Download
memory/3196-20-0x0000000008380000-0x0000000008520000-memory.dmp

Filesize
1.6MB

Download
memory/3196-14-0x0000000008380000-0x0000000008520000-memory.dmp

Filesize
1.6MB

Download
memory/3196-24-0x00000000088B0000-0x000000000895A000-memory.dmp

Filesize
680KB

Download
memory/3196-25-0x00000000088B0000-0x000000000895A000-memory.dmp

Filesize
680KB

Download
memory/3196-27-0x00000000088B0000-0x000000000895A000-memory.dmp

Filesize
680KB

Download
memory/3464-13-0x0000000000F90000-0x0000000000FA5000-memory.dmp

Filesize
84KB

Download
memory/3464-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3464-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3464-10-0x0000000000FC0000-0x000000000130A000-memory.dmp

Filesize
3.3MB

Download
memory/4256-5-0x0000000000800000-0x0000000000802000-memory.dmp

Filesize
8KB

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Analysis

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