MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 839d28f4d38455750ddf9ddffdd57d0cc6ee009714f407a8698e65e96eb9fa71. 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: 13


Intelligence 13 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 839d28f4d38455750ddf9ddffdd57d0cc6ee009714f407a8698e65e96eb9fa71
SHA3-384 hash: 7e5b42b14a06241c45bb57877002d41ab0cee9b499ee24dcac762ddf7b0a29d2d2cbb6e244e38df531a93d1996efc9b9
SHA1 hash: c308fe7de57e567314556a651eacd06071e1a896
MD5 hash: bbcb2b7f00998d0b2154097a83781c2a
humanhash: quebec-sixteen-virginia-earth
File name:Potvrda narudzbe je u prilogu.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'085'952 bytes
First seen:2021-11-22 22:26:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 671c081df187d22f9c77c7176755651b (2 x Formbook, 1 x DBatLoader)
ssdeep 12288:dTUA/J1MeQDzBMODjUvMJNj5knUgg4lK5ltoSK/O3O4bzPVslKNU:5T/OGODjUkJNuVtKLtobOTbOlK
Threatray 11'800 similar samples on MalwareBazaar
TLSH T1EE356B66F5514F36C42F1AB98C474389ABBBBD413F3243C55E6E2E043E312D66938A63
File icon (PE):PE icon
dhash icon 0cb23272b98ce6d1 (6 x RemcosRAT, 5 x Formbook, 2 x DBatLoader)
Reporter TeamDreier
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
95
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Potvrda narudzbe je u prilogu.exe
Verdict:
Malicious activity
Analysis date:
2021-11-22 22:36:38 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/a212ee74-5224-4639-a769-44056930e35a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Detection(s):
SecuriteInfo.com.LresultFromObject.2526.27197.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Creating a file
Launching a process
Searching for synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
keylogger
Link:
https://www.filescan.io/uploads/619c193fdd04e7d00e02d921/reports/37c65221-baa8-4755-84fc-6ed92242a663/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6f9c46f9-6e75-4ff6-bf99-0edc2186226a
Result
Threat name:
DBatLoader FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/894274
Signature
Allocates memory in foreign processes
Creates a thread in another existing process (thread injection)
Injects a PE file into a foreign processes
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)
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
Sigma detected: Execution from Suspicious Folder
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected DBatLoader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 526748 Sample: Potvrda narudzbe je u prilogu.exe Startdate: 23/11/2021 Architecture: WINDOWS Score: 100 56 Malicious sample detected (through community Yara rule) 2->56 58 Multi AV Scanner detection for submitted file 2->58 60 Yara detected DBatLoader 2->60 62 2 other signatures 2->62 10 Potvrda narudzbe je u prilogu.exe 1 18 2->10         started        process3 dnsIp4 54 cdn.discordapp.com 162.159.129.233, 443, 49778, 49779 CLOUDFLARENETUS United States 10->54 44 C:\Users\Public\Libraries\...\Mvzjfnup.exe, PE32 10->44 dropped 46 C:\Users\...\Mvzjfnup.exe:Zone.Identifier, ASCII 10->46 dropped 82 Writes to foreign memory regions 10->82 84 Allocates memory in foreign processes 10->84 86 Creates a thread in another existing process (thread injection) 10->86 88 Injects a PE file into a foreign processes 10->88 15 logagent.exe 10->15         started        file5 signatures6 process7 signatures8 98 Modifies the context of a thread in another process (thread injection) 15->98 100 Maps a DLL or memory area into another process 15->100 102 Sample uses process hollowing technique 15->102 104 2 other signatures 15->104 18 explorer.exe 2 15->18 injected process9 process10 20 Mvzjfnup.exe 13 18->20         started        24 Mvzjfnup.exe 13 18->24         started        26 cmmon32.exe 18->26         started        28 2 other processes 18->28 dnsIp11 48 cdn.discordapp.com 20->48 64 Writes to foreign memory regions 20->64 66 Allocates memory in foreign processes 20->66 68 Creates a thread in another existing process (thread injection) 20->68 30 DpiScaling.exe 20->30         started        50 162.159.135.233, 443, 49780 CLOUDFLARENETUS United States 24->50 52 cdn.discordapp.com 24->52 70 Multi AV Scanner detection for dropped file 24->70 72 Injects a PE file into a foreign processes 24->72 33 mobsync.exe 24->33         started        74 Modifies the context of a thread in another process (thread injection) 26->74 76 Maps a DLL or memory area into another process 26->76 78 Tries to detect virtualization through RDTSC time measurements 26->78 35 cmd.exe 1 26->35         started        37 explorer.exe 157 26->37         started        signatures12 process13 signatures14 90 Modifies the context of a thread in another process (thread injection) 30->90 92 Maps a DLL or memory area into another process 30->92 94 Sample uses process hollowing technique 30->94 39 chkdsk.exe 30->39         started        96 Tries to detect virtualization through RDTSC time measurements 33->96 42 conhost.exe 35->42         started        process15 signatures16 80 Tries to detect virtualization through RDTSC time measurements 39->80
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/839d28f4d38455750ddf9ddffdd57d0cc6ee009714f407a8698e65e96eb9fa71/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-11-22 08:52:18 UTC
File Type:
PE (Exe)
Extracted files:
49
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qoosr5gtqrkxkdo7txp73vl5btdo4aexct2apkdjrzs6s3vz7jyq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0e18df1488198f73ac693eac37584967930540fcaaeca8403f4d8fa2c1126bcd
Formbook
1ddb357041ae22e5c39f309d8432bf9b64e5b07ee9fcf578b7d94543005714fa
Formbook
1e72b496568d5e3642cc7fd51eb254a9003bcfed6726b52a341125155fa92e6a
Formbook
1fcc50813abb7385e0655f566a7def176171060614e8d691c1394776156f19a5
Formbook
3d46460aaf215354db83b8299f13c6574f1792582add090d05ec38107c377e23
Formbook
4d1830ac5ba1f7db687744346657c2c9428ec19c7681a4ea9cd42f4833f8371b
Formbook
6f2d89be3ad71500945dd3d430fd6bc2138b9d0e641cb201b62853578bd2f0b4
Formbook
df2cd1e31e0ca0bb7210ee5382d2c1927d558920827e15843e0faf4010a03e94
Formbook
fe6bd626fd98e3c0e4a2c350e5d927398e22e7731e7c2e1f31bc02181735c4e0
Formbook
+ 11'790 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:bc3s persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/211122-2c34xsghfr/
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
Suspicious use of SetThreadContext
Adds Run key to start application
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.topei-products.com/bc3s/
Unpacked files
SH256 hash:
c0d655ca0862ee8f069564e3e7fcb17d930e0c877a31e749f4ad1b73a38e855a
MD5 hash:
7f01373693adbbd15ca15fff811a2c1a
SHA1 hash:
bf4ef40f0feaf42aeac4767ff93bfe83e1f0c89d
Detections:
win_temple_loader_w0
Create hunting rule
Link:
https://www.unpac.me/results/0173f904-e76c-4fc0-b914-97b11574c189/
Parent samples :
bfbe11d6ffb3c82c59ac2cf85176583ff2ea5449d926584a59181286611f48f3
22e4c6c1d3eb1e8a93d2b36b152ef39cff53bc933ff80153057788fadf6615db
839d28f4d38455750ddf9ddffdd57d0cc6ee009714f407a8698e65e96eb9fa71
9bfd468b402317eb1dc711af78f4340d855cbf234a4736188283a6fa6f8d3cb2
2863a8690acd578ea41d8ef458f493c7bab50c34d8d6fd668f8ef56d429094de
41469a749da51e8aa7e1ea159041bf74f712dd4f23f076188f547ee0c0f7933f
413e8df7f149aa643aaa1ef70e953ab2112827b652f1cf05b6420ed6a119962d
34443c2f4cf165f96c3eaffb93f2a7b3628ebed8ed119b3ef2ad3e5dc450e0a0
fe367e5f3b5894117d3b699784bc5da3cb4083608c94879895b279b2bc2f32a4
SH256 hash:
839d28f4d38455750ddf9ddffdd57d0cc6ee009714f407a8698e65e96eb9fa71
MD5 hash:
bbcb2b7f00998d0b2154097a83781c2a
SHA1 hash:
c308fe7de57e567314556a651eacd06071e1a896
Link:
https://www.unpac.me/results/0173f904-e76c-4fc0-b914-97b11574c189/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/839d28f4d384/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/839d28f4d38455750ddf9ddffdd57d0cc6ee009714f407a8698e65e96eb9fa71

File information

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

Malspam

Formbook

Executable exe 839d28f4d38455750ddf9ddffdd57d0cc6ee009714f407a8698e65e96eb9fa71

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/208469/

Comments