MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a88a1ec7699128b0e1f344c880b17b839927b7580e3bf7ece152dff57d719dfe. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 17


Intelligence 17 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a88a1ec7699128b0e1f344c880b17b839927b7580e3bf7ece152dff57d719dfe
SHA3-384 hash: fd4fbfd109a1a5b00591dcb2314f5af8ef437908e680290f05fb224c17a85814e67339a2492c79d518af983912754831
SHA1 hash: 9f388687fa7b1a7442132b5c51c4dbe32ff02a9c
MD5 hash: 616305478f3a5ddc4a40612cde4f7577
humanhash: nine-grey-magazine-winner
File name:Swift Copy_xlsx.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:266'315 bytes
First seen:2022-05-09 08:26:44 UTC
Last seen:2022-05-16 09:18:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (720 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 3072:61NjcVVnLpPuJboaKTY4l9zAAkPKgd3TS/jTHu3x3OeyuWA6Q/GiQw7itbxEmiHB:aNeZwohzwAQ/9ejTHu35LyuW9LlRT8
Threatray 15'390 similar samples on MalwareBazaar
TLSH T18444021453A58067F4A97F3014266DBA7BFABC3BEC54D20B772076187279B4E8AC9343
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 015c3eae8ede1c21 (15 x Formbook, 1 x Loki)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
250
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Swift Copy_xlsx.exe
Verdict:
Malicious activity
Analysis date:
2022-05-09 08:58:54 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/4b8c5464-10b6-4df4-9a38-26a82f4d2458

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.2.6896.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Reading critical registry keys
Setting browser functions hooks
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/16771/overview
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6278d077d4bfd83491c34ab5/reports/daffe7bc-f2fd-474c-a7ba-28b3cad524df/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d250f4d0-43d7-4b6b-844f-579edbb9cecd
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/990027
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 622523 Sample: Swift Copy_xlsx.exe Startdate: 09/05/2022 Architecture: WINDOWS Score: 100 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus detection for URL or domain 2->51 53 5 other signatures 2->53 11 Swift Copy_xlsx.exe 18 2->11         started        process3 file4 31 C:\Users\user\AppData\Local\Temp\ipbyp.exe, PE32 11->31 dropped 14 ipbyp.exe 11->14         started        process5 signatures6 63 Multi AV Scanner detection for dropped file 14->63 65 Tries to detect virtualization through RDTSC time measurements 14->65 17 ipbyp.exe 14->17         started        process7 signatures8 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Sample uses process hollowing technique 17->43 45 Queues an APC in another process (thread injection) 17->45 20 explorer.exe 17->20 injected process9 dnsIp10 33 soeoul-kk.site 66.29.146.171, 49775, 80 ADVANTAGECOMUS United States 20->33 35 www.soeoul-kk.site 20->35 37 www.primecrose.email 20->37 55 System process connects to network (likely due to code injection or exploit) 20->55 24 wlanext.exe 20->24         started        signatures11 process12 signatures13 57 Modifies the context of a thread in another process (thread injection) 24->57 59 Maps a DLL or memory area into another process 24->59 61 Tries to detect virtualization through RDTSC time measurements 24->61 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a88a1ec7699128b0e1f344c880b17b839927b7580e3bf7ece152dff57d719dfe/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-05-09 02:57:01 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vcfb5r3jseulbyptiteibml3qomspn2yby57p3hbklp7k7lrtx7a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
3c010d88a118ba3cc666e05c6f8f82159ac38e5486b5ed60c65d870287b8cff6
Formbook
5f3980e6686fe4d2dc41f24e42287d082cc894a57078e69e4a9554bec20ff5cc
Formbook
84d592767b553d06efe654049e16c7c583c0fa505f05b623dc508902d62b5a7d
Formbook
9ff4f71e3878c4aae12440d4f8e6a8fa2af51c60c5375b49f4e0a8d8ffc8c2b2
Formbook
d02d076842cc94fa6612b13ff0d2f77e1ff9150d22607cfe3962da4234cf4ed5
Formbook
d675408e7dcc87922c9d654a5c4f387f70d4a06ad99bad187753d90ee6381a87
Formbook
d8b05baee601302f22a561d0686689994296a4fa6ce256bcedb9bfa899553c07
Formbook
f0023062662c42d563fd03a92e4ed00a14cf78d4c6debde99fe168babf6fa347
Formbook
+ 15'380 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ai26 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220509-kcfvysffdl/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
237286c3aac9ea49fd5e3626a4e771030f43a03328cb9dca7d892a2ee1fe5774
MD5 hash:
fe4a326c49d1647d2dcfad96e72b86a8
SHA1 hash:
9e67487ed55cf69d8ea4900639dbbf407adb7c2b
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/e887b7b5-8c06-496b-86eb-1911773176ff/
Parent samples :
f0023062662c42d563fd03a92e4ed00a14cf78d4c6debde99fe168babf6fa347
d75366d566a861424df0ed7a67ea3e65a14d93db568db8163787de3106ecf816
a88a1ec7699128b0e1f344c880b17b839927b7580e3bf7ece152dff57d719dfe
04485275963ca6154767437248125ec169e808006463f79f737d325aeee8d3a6
SH256 hash:
1fc09d1151c186d695ea0af7f5af0746455ed73bba9e99f8590cb7e7e368d731
MD5 hash:
d5ca54ac676d63926efd8d5dea32f55b
SHA1 hash:
680c21cebc305a30cec6c6f755ec7ca62d21523e
Link:
https://www.unpac.me/results/e887b7b5-8c06-496b-86eb-1911773176ff/
SH256 hash:
a88a1ec7699128b0e1f344c880b17b839927b7580e3bf7ece152dff57d719dfe
MD5 hash:
616305478f3a5ddc4a40612cde4f7577
SHA1 hash:
9f388687fa7b1a7442132b5c51c4dbe32ff02a9c
Link:
https://www.unpac.me/results/e887b7b5-8c06-496b-86eb-1911773176ff/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a88a1ec76991/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a88a1ec7699128b0e1f344c880b17b839927b7580e3bf7ece152dff57d719dfe

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe a88a1ec7699128b0e1f344c880b17b839927b7580e3bf7ece152dff57d719dfe

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments