formbook | 79df449dc86d423ea6b59361b7bc839efd8149bf49f138540327d9e94ec89733

General

Target

tmp.exe
Size

880KB
MD5

7a0e96f78e83a1d55e045972883b04d0
SHA1

33e82a9963397ebd4c786a8f62a5b464899f6929
SHA256

79df449dc86d423ea6b59361b7bc839efd8149bf49f138540327d9e94ec89733
SHA512

81e1d33bb133073f8a6349630693c11a44f63deb0b6cafef8e4d4eea58da9db6b981e3c6c5d4f42436c05ce5c0859faeea2ba6166774674000ad9183e71ab62c
SSDEEP

12288:bCRjG9rD4sbdehUG0CrkDPhaoh+s3dHzqm0wcas/:DD4KXhC6aq1qm

Score

10^/10

formbook s8gw rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

s8gw

Decoy

b/iFndOEL2rKvw==

HK7quAepCJH6CkNgpH2cDYx1

YEayMA+cR1WQ0Qw/lQ==

kPVNVkAC6pEPHVFQnzCxsA==

yLE1wrE7kf1KRGRm5a95qQ==

D6ktQZWoaOJGopmOlg==

98rmMok6y5e47YvCCMQNPaqM6qf+7PsEAQ==

7Po3fdN1NNtop0X5Ryv9PnUrSLQ=

+vk1DU92V465rf1+gFhdWMFoAsAY

AuhZ6jw45aHmPdzGVilx

/9ln8smKekiYzqePkA==

7+gsdtTlpqcSL0/GVilx

6pXLEOumjAfvK8Y=

inT5kfC0FBmcw/hw7NYua819

wb/qKZCjfrEiKFz9Vyn9chrZxA==

Pil1K4a6ruUXJ2fPD5qXo+2pNMn5VdCREA==

mxo3/mBm1hMSWd8=

8ltzwIsdiPpJXbK30JecDYx1

BmrK2y9G+VyimqzrK9YtmYY=

jPP9Q/IqWt3JQSZtvqI1jb9oAsAY

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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	tmp.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4308 set thread context of 4644	4308	tmp.exe	92
PID 4644 set thread context of 2560	4644	tmp.exe	40
PID 4144 set thread context of 2560	4144	explorer.exe	40

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	explorer.exe

Suspicious behavior: EnumeratesProcesses 42 IoCs

pid	Process
4644	tmp.exe
4644	tmp.exe
4644	tmp.exe
4644	tmp.exe
4644	tmp.exe
4644	tmp.exe
4644	tmp.exe
4644	tmp.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2560	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
4644	tmp.exe
4644	tmp.exe
4644	tmp.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe
4144	explorer.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4644	tmp.exe
Token: SeDebugPrivilege	4144	explorer.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4308 wrote to memory of 4644	4308	tmp.exe	92
PID 4308 wrote to memory of 4644	4308	tmp.exe	92
PID 4308 wrote to memory of 4644	4308	tmp.exe	92
PID 4308 wrote to memory of 4644	4308	tmp.exe	92
PID 4308 wrote to memory of 4644	4308	tmp.exe	92
PID 4308 wrote to memory of 4644	4308	tmp.exe	92
PID 2560 wrote to memory of 4144	2560	Explorer.EXE	93
PID 2560 wrote to memory of 4144	2560	Explorer.EXE	93
PID 2560 wrote to memory of 4144	2560	Explorer.EXE	93
PID 4144 wrote to memory of 4332	4144	explorer.exe	94
PID 4144 wrote to memory of 4332	4144	explorer.exe	94
PID 4144 wrote to memory of 4332	4144	explorer.exe	94

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2560
- C:\Users\Admin\AppData\Local\Temp\tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4308
- - C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    3⤵
    - Checks computer location settings
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4644
- 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:4144
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:4332

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/2560-144-0x00000000030C0000-0x00000000031A8000-memory.dmp

Filesize
928KB

Download
memory/2560-152-0x00000000080E0000-0x00000000081F8000-memory.dmp

Filesize
1.1MB

Download
memory/2560-150-0x00000000080E0000-0x00000000081F8000-memory.dmp

Filesize
1.1MB

Download
memory/4144-151-0x00000000001A0000-0x00000000001CB000-memory.dmp

Filesize
172KB

Download
memory/4144-149-0x0000000002700000-0x000000000278F000-memory.dmp

Filesize
572KB

Download
memory/4144-148-0x00000000028B0000-0x0000000002BFA000-memory.dmp

Filesize
3.3MB

Download
memory/4144-147-0x00000000001A0000-0x00000000001CB000-memory.dmp

Filesize
172KB

Download
memory/4144-146-0x0000000000EB0000-0x00000000012E3000-memory.dmp

Filesize
4.2MB

Download
memory/4144-145-0x0000000000000000-mapping.dmp

Download
memory/4308-137-0x000000000D880000-0x000000000D8E6000-memory.dmp

Filesize
408KB

Download
memory/4308-132-0x0000000000600000-0x00000000006E2000-memory.dmp

Filesize
904KB

Download
memory/4308-136-0x000000000D7E0000-0x000000000D87C000-memory.dmp

Filesize
624KB

Download
memory/4308-135-0x0000000005220000-0x000000000522A000-memory.dmp

Filesize
40KB

Download
memory/4308-134-0x0000000005090000-0x0000000005122000-memory.dmp

Filesize
584KB

Download
memory/4308-133-0x0000000005640000-0x0000000005BE4000-memory.dmp

Filesize
5.6MB

Download
memory/4644-143-0x0000000000AC0000-0x0000000000AD0000-memory.dmp

Filesize
64KB

Download
memory/4644-142-0x0000000001010000-0x000000000135A000-memory.dmp

Filesize
3.3MB

Download
memory/4644-141-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4644-139-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4644-138-0x0000000000000000-mapping.dmp

Download

Analysis

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