MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 53878a7b306a51e03f35297ea81e42c7aa079665928f8ca0d1f1732c0da82ffe. 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: 11


Intelligence 11 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 53878a7b306a51e03f35297ea81e42c7aa079665928f8ca0d1f1732c0da82ffe
SHA3-384 hash: 40392563c66d44c660a19d6327444a1d1ceae58f42d44ef75ab03cb5ebff990bf53de7b7a9117f24fbc4a3c45984cb78
SHA1 hash: 8bbf913b96f7665a77506302ea60d1145cac7ad3
MD5 hash: bdd3c5a289dcb8534f5371814b853e7e
humanhash: solar-jupiter-kansas-asparagus
File name:R900071030.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:350'208 bytes
First seen:2021-01-05 09:38:00 UTC
Last seen:2021-01-05 11:39:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash e41eb5672b7251a954bc5957b9a4dc03 (2 x Formbook, 1 x RemcosRAT, 1 x NanoCore)
ssdeep 6144:5/hXM6TGfaXeRGjwj9qsgEtBI/IJQSv38gRxZci0+6aCuKV4YWppdRr0Us3U6lxk:PXMXFUsgEz3Ki0XVOpvQk
Threatray 3'347 similar samples on MalwareBazaar
TLSH F3744A26B7C8F6A6D18140B47209FFA650503C34292EC847F7C17B5B38B25EE9A16F5B
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: alnassar.com.sa
Sending IP: 162.244.93.110
From: Sawit-Tech Power Sdn Bhd <mytan@sawit-techpower.com>
Reply-To: mytan@sawit-techpower.com
Subject: R900071030/RFQ/SAWIT-TECH POWER
Attachment: R900071030.rar (contains "R900071030.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
167
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
R900071030.exe
Verdict:
Malicious activity
Analysis date:
2021-01-05 09:44:42 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/fab4451d-9458-479c-82e7-7a144e1a16a0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/110561/
Detection(s):
SecuriteInfo.com.Variant.Mikey.117991.1779.28243.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Unauthorized injection to a recently created process
Launching the process to change network settings
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/574029
Signature
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses netstat to query active network connections and open ports
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 336073 Sample: R900071030.exe Startdate: 05/01/2021 Architecture: WINDOWS Score: 100 30 www.trumpvotr.com 2->30 32 trumpvotr.com 2->32 40 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 Yara detected FormBook 2->44 46 3 other signatures 2->46 11 R900071030.exe 1 2->11         started        signatures3 process4 signatures5 56 Maps a DLL or memory area into another process 11->56 58 Tries to detect virtualization through RDTSC time measurements 11->58 14 R900071030.exe 11->14         started        17 conhost.exe 11->17         started        process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 19 explorer.exe 14->19 injected process8 dnsIp9 34 villacliviapuntacana.com 34.102.136.180, 49734, 49747, 49758 GOOGLEUS United States 19->34 36 www.labhoster.com 104.27.186.28, 49731, 80 CLOUDFLARENETUS United States 19->36 38 9 other IPs or domains 19->38 48 System process connects to network (likely due to code injection or exploit) 19->48 23 NETSTAT.EXE 19->23         started        signatures10 process11 signatures12 50 Modifies the context of a thread in another process (thread injection) 23->50 52 Maps a DLL or memory area into another process 23->52 54 Tries to detect virtualization through RDTSC time measurements 23->54 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/53878a7b306a51e03f35297ea81e42c7aa079665928f8ca0d1f1732c0da82ffe/
Threat name:
Win32.Trojan.Mikey
Create hunting rule
Status:
Malicious
First seen:
2021-01-05 09:33:12 UTC
AV detection:
15 of 46 (32.61%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kodyu6zqnji6apzvff7kqhscy6vapftfskhyzigr6fzsydnif77a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
04a2b06549eb2ce73a5405a14ba3dd9e13029665382b31984aa41f36841b28d5
Formbook
2829f8bf819c13d753f3c6b33726df8c46a533f3040b550a86ca0ab34f967e92
Formbook
45cf51569314dac91762e5c1f112c4a640595239d553729f10613f9f59403e84
Formbook
52f5f69cea97498f63733e3ea43b67e840177c68d4370531a008c6e7f4fc9abb
Formbook
7aa337be7c2fc3d45a829aabcc060f86eac6ae53d878194cc253cfb8e228abf2
Formbook
805a071c8e38fca4e3602881ff33ac7a2afba65bb61cd7adda873950bf2779cb
Formbook
a6c4cf62dc3f99465080ac5cd48a2f2f1423bb90d3d797ed27905225438d4f35
Formbook
adfbe10537f150b8d3e8efa0e2131a4d45d4f80671880a9f729e678c2d7244b5
Formbook
bd53fc041a6e364f163c70e2bcf38a1565f3764a31b8c94de466fce780f9ab71
Formbook
e59d9d9ca9e0c7dddea9a94f0dab0ae137b6a762999bade26db35b1ca35e1f72
Formbook
+ 3'337 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210105-s4mb1xny7n/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.minimalgent.com/heye/
Unpacked files
SH256 hash:
9c65dc940892812bd1996db15784b710caf3961fe1b4fb8cee45c19a5612279f
MD5 hash:
c82c04703be6d4710a468df0bf93bf7e
SHA1 hash:
c5da19672e7cab102d516e47b8b1c47123478eea
Link:
https://www.unpac.me/results/6f0975b2-dc0c-4e27-a84c-86d126d57a37/
SH256 hash:
3fff5f3adf822fb5aa359a0585afaa385ab8671ea4ae37b6f35030542d6bbc03
MD5 hash:
136f83c671c4c3ab33766460012c4fcf
SHA1 hash:
9b8440ebd3dbfc681c2f95918c1f91cb6522b661
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/6f0975b2-dc0c-4e27-a84c-86d126d57a37/
Parent samples :
adfbe10537f150b8d3e8efa0e2131a4d45d4f80671880a9f729e678c2d7244b5
04a2b06549eb2ce73a5405a14ba3dd9e13029665382b31984aa41f36841b28d5
7aa337be7c2fc3d45a829aabcc060f86eac6ae53d878194cc253cfb8e228abf2
a6c4cf62dc3f99465080ac5cd48a2f2f1423bb90d3d797ed27905225438d4f35
53878a7b306a51e03f35297ea81e42c7aa079665928f8ca0d1f1732c0da82ffe
76f102f79f2f05a30e4cf14c377ce7e7987fd4937cd7b11190c9c21925d82921
SH256 hash:
53878a7b306a51e03f35297ea81e42c7aa079665928f8ca0d1f1732c0da82ffe
MD5 hash:
bdd3c5a289dcb8534f5371814b853e7e
SHA1 hash:
8bbf913b96f7665a77506302ea60d1145cac7ad3
Link:
https://www.unpac.me/results/6f0975b2-dc0c-4e27-a84c-86d126d57a37/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.33
Link:
https://yomi.yoroi.company/submissions/53878a7b306a51e03f35297ea81e42c7aa079665928f8ca0d1f1732c0da82ffe

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:crime_win32_ransom_avaddon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819

File information

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

Malspam

Formbook

rar 43c699fca140940200a40544062c0ab3ed3421d8eebd53377c2576380ac0ba77

Formbook

Executable exe 53878a7b306a51e03f35297ea81e42c7aa079665928f8ca0d1f1732c0da82ffe

(this sample)

  
Dropped by
MD5 5911b7c858a353a52dc2fc1c0fe77d23
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 43c699fca140940200a40544062c0ab3ed3421d8eebd53377c2576380ac0ba77
Cape
Cape
https://www.capesandbox.com/analysis/110561/

Comments