formbook | 33b4616c77120e6805e6291a245901aaf59a3ff29ab585684aa9ff4261b88425

General

Target

MT10386867902-004. pdf.exe
Size

1.1MB
MD5

0bdc1fda2cc607187dc341cc25827e5a
SHA1

7248bf8f4d29a9d3c2e70c1b987b6464713e5f39
SHA256

33b4616c77120e6805e6291a245901aaf59a3ff29ab585684aa9ff4261b88425
SHA512

7b9bc1f282cbafa54a5421d67b96b682510f081ed94d94328453b5fa37f532f3a71d17ac12979bfce55faa2b23b2857745c7b4599f8ffd47a167e6e660240899
SSDEEP

24576:sONzSIoHIbBEAX+b0cM9/+TY0kNUYuy1aCb:sYzSI+IdEBb/MgTY0kNIy1/b

Score

10^/10

formbook tdet rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

tdet

Decoy

flecOADaqXPdGREyc2S5U7in

KVyI9ev7H+7QNmD2Ypo=

/dS+buXK9NuzGmk+HDCRUfazFQ==

IHpkgl+nN4I0gAnczMbM7asQ708Cbt0=

UkVGwHvEpCcYba0OBA==

VTsq0ruLmB+azL+lXZkZRw==

5qToiFYvMKMD8W5dGQ==

S4rU9cAx619SvJr10kpU4XCfj6w=

9ymGAMljBH9nres8Ew==

BZeWfy6ACwx4uKkD66doyXuv

prCtFMOp06JaczompuX6D8VIKExtMFEs

dePiDR+zZNPBHPeGJAWv

OAR/oEfQWJ5S4N83XZkZRw==

t3LunnRUcdmGtd0rDg==

YAg6s7KVxrMcXPB/fJQLQQ==

t9oRP+fGiZ5WqdhnAg==

6nyt4oS6VLCeC907L8blYIuxEw==

rzQ6JM4sjRjA+TBcNpQ=

VILmlp6qylo/bMw=

bGqKNd1c+/9ptjYJ6adoyXuv

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	MT10386867902-004. pdf.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 3576 set thread context of 3036	3576	MT10386867902-004. pdf.exe	92
PID 3036 set thread context of 3080	3036	MT10386867902-004. pdf.exe	46
PID 3036 set thread context of 3080	3036	MT10386867902-004. pdf.exe	46
PID 2816 set thread context of 3080	2816	explorer.exe	46

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	explorer.exe

Suspicious behavior: EnumeratesProcesses 40 IoCs

pid	Process
3036	MT10386867902-004. pdf.exe
3036	MT10386867902-004. pdf.exe
3036	MT10386867902-004. pdf.exe
3036	MT10386867902-004. pdf.exe
3036	MT10386867902-004. pdf.exe
3036	MT10386867902-004. pdf.exe
3036	MT10386867902-004. pdf.exe
3036	MT10386867902-004. pdf.exe
3036	MT10386867902-004. pdf.exe
3036	MT10386867902-004. pdf.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3080	Explorer.EXE

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
3036	MT10386867902-004. pdf.exe
3036	MT10386867902-004. pdf.exe
3036	MT10386867902-004. pdf.exe
3036	MT10386867902-004. pdf.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe
2816	explorer.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3036	MT10386867902-004. pdf.exe
Token: SeDebugPrivilege	2816	explorer.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3576 wrote to memory of 3036	3576	MT10386867902-004. pdf.exe	92
PID 3576 wrote to memory of 3036	3576	MT10386867902-004. pdf.exe	92
PID 3576 wrote to memory of 3036	3576	MT10386867902-004. pdf.exe	92
PID 3576 wrote to memory of 3036	3576	MT10386867902-004. pdf.exe	92
PID 3576 wrote to memory of 3036	3576	MT10386867902-004. pdf.exe	92
PID 3576 wrote to memory of 3036	3576	MT10386867902-004. pdf.exe	92
PID 3080 wrote to memory of 2816	3080	Explorer.EXE	93
PID 3080 wrote to memory of 2816	3080	Explorer.EXE	93
PID 3080 wrote to memory of 2816	3080	Explorer.EXE	93
PID 2816 wrote to memory of 2344	2816	explorer.exe	94
PID 2816 wrote to memory of 2344	2816	explorer.exe	94
PID 2816 wrote to memory of 2344	2816	explorer.exe	94

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3080
- C:\Users\Admin\AppData\Local\Temp\MT10386867902-004. pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\MT10386867902-004. pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3576
- - C:\Users\Admin\AppData\Local\Temp\MT10386867902-004. pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\MT10386867902-004. pdf.exe"
    3⤵
    - Checks computer location settings
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3036
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2816
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:2344

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2816-154-0x00000000009C0000-0x00000000009EB000-memory.dmp

Filesize
172KB

Download
memory/2816-153-0x0000000002EE0000-0x0000000002F6F000-memory.dmp

Filesize
572KB

Download
memory/2816-152-0x0000000002B00000-0x0000000002E4A000-memory.dmp

Filesize
3.3MB

Download
memory/2816-151-0x00000000009C0000-0x00000000009EB000-memory.dmp

Filesize
172KB

Download
memory/2816-150-0x00000000003B0000-0x00000000007E3000-memory.dmp

Filesize
4.2MB

Download
memory/3036-149-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/3036-141-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/3036-142-0x0000000001230000-0x000000000157A000-memory.dmp

Filesize
3.3MB

Download
memory/3036-143-0x0000000000990000-0x00000000009A0000-memory.dmp

Filesize
64KB

Download
memory/3036-146-0x00000000015B0000-0x00000000015C0000-memory.dmp

Filesize
64KB

Download
memory/3036-139-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/3080-155-0x0000000002D10000-0x0000000002DF3000-memory.dmp

Filesize
908KB

Download
memory/3080-144-0x0000000002900000-0x0000000002A65000-memory.dmp

Filesize
1.4MB

Download
memory/3080-147-0x0000000007C10000-0x0000000007D83000-memory.dmp

Filesize
1.4MB

Download
memory/3080-156-0x0000000002D10000-0x0000000002DF3000-memory.dmp

Filesize
908KB

Download
memory/3576-132-0x0000000000010000-0x000000000012A000-memory.dmp

Filesize
1.1MB

Download
memory/3576-135-0x0000000004C70000-0x0000000004C7A000-memory.dmp

Filesize
40KB

Download
memory/3576-134-0x0000000004AC0000-0x0000000004B52000-memory.dmp

Filesize
584KB

Download
memory/3576-133-0x0000000005120000-0x00000000056C4000-memory.dmp

Filesize
5.6MB

Download
memory/3576-136-0x00000000078A0000-0x000000000793C000-memory.dmp

Filesize
624KB

Download
memory/3576-137-0x0000000007940000-0x00000000079A6000-memory.dmp

Filesize
408KB

Download

Analysis

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