formbook | e2328874b4deb0accd85b76ba1a5f7734dc7e70ff17f4722bf9158d54a0aab96

General

Target

e2328874b4deb0accd85b76ba1a5f7734dc7e70ff17f4722bf9158d54a0aab96.exe
Size

747KB
MD5

86882908b1bf788112a2da6bfde08a7c
SHA1

995c4ab5a4bab535066635f287f87799691f4ff8
SHA256

e2328874b4deb0accd85b76ba1a5f7734dc7e70ff17f4722bf9158d54a0aab96
SHA512

88af00ef5a33ef12208ea42e51b1892f127bb755b3032beef8bc3d281685d9fb82721cc85bce672740773dca38c2f55a816175effa45a86bec69e20b48783321

Score

10^/10

formbook fs8 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

fs8

Decoy

deanpalm.net

dinu-living.com

setsomegoals.com

craftyfresh.email

cleantons.com

szysjfjx.com

shestakova.info

70skinstore.com

ampletrade.ltd

cmmcwomen.group

michinoeki-taka.com

auntoni.com

huochegw.com

abovekulture.com

gzjige.com

americastandproudagain.com

hobbyhousekennels.com

1020waterviewdrive.com

5927399.com

gabipareras.net

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/2028-63-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/2028-64-0x000000000041ECD0-mapping.dmp	formbook
behavioral1/memory/2028-66-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1368-74-0x00000000000D0000-0x00000000000FE000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 656 set thread context of 2028	656	e2328874b4deb0accd85b76ba1a5f7734dc7e70ff17f4722bf9158d54a0aab96.exe	29
PID 2028 set thread context of 1376	2028	RegSvcs.exe	19
PID 1368 set thread context of 1376	1368	cmstp.exe	19

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1104	schtasks.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
656	e2328874b4deb0accd85b76ba1a5f7734dc7e70ff17f4722bf9158d54a0aab96.exe
2028	RegSvcs.exe
2028	RegSvcs.exe
1368	cmstp.exe
1368	cmstp.exe
1368	cmstp.exe
1368	cmstp.exe
1368	cmstp.exe
1368	cmstp.exe
1368	cmstp.exe
1368	cmstp.exe
1368	cmstp.exe
1368	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2028	RegSvcs.exe
2028	RegSvcs.exe
2028	RegSvcs.exe
1368	cmstp.exe
1368	cmstp.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	656	e2328874b4deb0accd85b76ba1a5f7734dc7e70ff17f4722bf9158d54a0aab96.exe
Token: SeDebugPrivilege	2028	RegSvcs.exe
Token: SeDebugPrivilege	1368	cmstp.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1376	Explorer.EXE
1376	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1376	Explorer.EXE
1376	Explorer.EXE

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 656 wrote to memory of 1104	656	e2328874b4deb0accd85b76ba1a5f7734dc7e70ff17f4722bf9158d54a0aab96.exe	27
PID 656 wrote to memory of 1104	656	e2328874b4deb0accd85b76ba1a5f7734dc7e70ff17f4722bf9158d54a0aab96.exe	27
PID 656 wrote to memory of 1104	656	e2328874b4deb0accd85b76ba1a5f7734dc7e70ff17f4722bf9158d54a0aab96.exe	27
PID 656 wrote to memory of 1104	656	e2328874b4deb0accd85b76ba1a5f7734dc7e70ff17f4722bf9158d54a0aab96.exe	27
PID 656 wrote to memory of 2028	656	e2328874b4deb0accd85b76ba1a5f7734dc7e70ff17f4722bf9158d54a0aab96.exe	29
PID 656 wrote to memory of 2028	656	e2328874b4deb0accd85b76ba1a5f7734dc7e70ff17f4722bf9158d54a0aab96.exe	29
PID 656 wrote to memory of 2028	656	e2328874b4deb0accd85b76ba1a5f7734dc7e70ff17f4722bf9158d54a0aab96.exe	29
PID 656 wrote to memory of 2028	656	e2328874b4deb0accd85b76ba1a5f7734dc7e70ff17f4722bf9158d54a0aab96.exe	29
PID 656 wrote to memory of 2028	656	e2328874b4deb0accd85b76ba1a5f7734dc7e70ff17f4722bf9158d54a0aab96.exe	29
PID 656 wrote to memory of 2028	656	e2328874b4deb0accd85b76ba1a5f7734dc7e70ff17f4722bf9158d54a0aab96.exe	29
PID 656 wrote to memory of 2028	656	e2328874b4deb0accd85b76ba1a5f7734dc7e70ff17f4722bf9158d54a0aab96.exe	29
PID 656 wrote to memory of 2028	656	e2328874b4deb0accd85b76ba1a5f7734dc7e70ff17f4722bf9158d54a0aab96.exe	29
PID 656 wrote to memory of 2028	656	e2328874b4deb0accd85b76ba1a5f7734dc7e70ff17f4722bf9158d54a0aab96.exe	29
PID 656 wrote to memory of 2028	656	e2328874b4deb0accd85b76ba1a5f7734dc7e70ff17f4722bf9158d54a0aab96.exe	29
PID 1376 wrote to memory of 1368	1376	Explorer.EXE	30
PID 1376 wrote to memory of 1368	1376	Explorer.EXE	30
PID 1376 wrote to memory of 1368	1376	Explorer.EXE	30
PID 1376 wrote to memory of 1368	1376	Explorer.EXE	30
PID 1376 wrote to memory of 1368	1376	Explorer.EXE	30
PID 1376 wrote to memory of 1368	1376	Explorer.EXE	30
PID 1376 wrote to memory of 1368	1376	Explorer.EXE	30
PID 1368 wrote to memory of 1600	1368	cmstp.exe	31
PID 1368 wrote to memory of 1600	1368	cmstp.exe	31
PID 1368 wrote to memory of 1600	1368	cmstp.exe	31
PID 1368 wrote to memory of 1600	1368	cmstp.exe	31

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1376
- C:\Users\Admin\AppData\Local\Temp\e2328874b4deb0accd85b76ba1a5f7734dc7e70ff17f4722bf9158d54a0aab96.exe
  "C:\Users\Admin\AppData\Local\Temp\e2328874b4deb0accd85b76ba1a5f7734dc7e70ff17f4722bf9158d54a0aab96.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:656
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\atPWLmI" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD23E.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1104
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "{path}"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2028
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1368
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:1600

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

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\tmpD23E.tmp

Filesize
1KB

MD5
578d18497776664a3cae1ad96eccd966

SHA1
609fe2f83c057f5aea36d75360e8c24fbf155b01

SHA256
fe2233a39e36c2ee7328398c756ec7db0f75c50dc44b4bc7fb5fa7242530feb2

SHA512
76ce678857aa66bfa2e7018e3bf13b7174786ddbf23263dcb080dc4d267750a0a63253f0c079fb3057b4881540d343ffa83eb4cd17fd4694992f597d1a243db4

Download Submit
memory/656-54-0x0000000000EC0000-0x0000000000F82000-memory.dmp

Filesize
776KB

Download
memory/656-55-0x0000000000580000-0x00000000005EA000-memory.dmp

Filesize
424KB

Download
memory/656-56-0x0000000000670000-0x000000000068C000-memory.dmp

Filesize
112KB

Download
memory/656-57-0x0000000004B10000-0x0000000004B6E000-memory.dmp

Filesize
376KB

Download
memory/1368-71-0x00000000755A1000-0x00000000755A3000-memory.dmp

Filesize
8KB

Download
memory/1368-76-0x0000000001DD0000-0x0000000001E63000-memory.dmp

Filesize
588KB

Download
memory/1368-73-0x0000000002000000-0x0000000002303000-memory.dmp

Filesize
3.0MB

Download
memory/1368-74-0x00000000000D0000-0x00000000000FE000-memory.dmp

Filesize
184KB

Download
memory/1368-72-0x0000000000240000-0x0000000000258000-memory.dmp

Filesize
96KB

Download
memory/1376-69-0x0000000003D40000-0x0000000003E1D000-memory.dmp

Filesize
884KB

Download
memory/1376-77-0x0000000005E80000-0x000000000600D000-memory.dmp

Filesize
1.6MB

Download
memory/2028-61-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2028-68-0x00000000003C0000-0x00000000003D4000-memory.dmp

Filesize
80KB

Download
memory/2028-60-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2028-67-0x00000000009E0000-0x0000000000CE3000-memory.dmp

Filesize
3.0MB

Download
memory/2028-66-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2028-63-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads