MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 c4b88f2cd48afe278bcaa30561bfc0390f96ec9660f9790108b03feee44ad75b. 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: 10
| SHA256 hash: | c4b88f2cd48afe278bcaa30561bfc0390f96ec9660f9790108b03feee44ad75b |
|---|---|
| SHA3-384 hash: | ce2959ed39b789cf3b6cd7192bf137142e99c34fe2c6e8f1176cd1b89564e9037f38baadb5b383f38a124d03bc1d3c12 |
| SHA1 hash: | a22dafdf72c4ecb601aae3f26d6932366e4ba690 |
| MD5 hash: | 6c56e40e1179bafa2fd9a6c248e107b8 |
| humanhash: | hamper-saturn-alanine-football |
| File name: | Transfer Confirmation.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 1'297'408 bytes |
| First seen: | 2021-03-04 07:14:29 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger) |
| ssdeep | 12288:LCBE4KnfF7kQ7uEqHSU3N9phJIYDFNy55QQu+BdgUkPishN/BAwO9hsDLhc1y:uBTKN7LqP3ndY56Qu+ijO3sxc4 |
| Threatray | 3'986 similar samples on MalwareBazaar |
| TLSH | 10556B2157EC7B09E03EABB157B0592A43F9AC06EF17D35DBDC150D62E72B018E0762A |
| Reporter |  cocaman |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
101
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
d9ec166985f61be8526de40c31ff79c5161b54c347dba858da495395f2c253a2
Verdict:
Malicious activity
Analysis date:
2021-03-04 05:31:10 UTC
Tags:
trojan formbook stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
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
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Taskun
Status:
Malicious
First seen:
2021-03-04 07:15:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
47
AV detection:
19 of 43 (44.19%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 3'976 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook evasion rat spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Deletes itself
Looks for VMWare Tools registry key
Formbook Payload
Looks for VirtualBox Guest Additions in registry
Formbook
Malware Config
C2 Extraction:
http://www.the-techs.info/chue/
Unpacked files
SH256 hash:
f9d949d2f56c449c5d346bb93ed04d38426f563b022dd179ae330dab46682c3b
MD5 hash:
871e23d748ba756eaab5777708f250f8
SHA1 hash:
c9816d4ab38541aaab9aa3eab7cb4898d0b72e4a
SH256 hash:
c4b88f2cd48afe278bcaa30561bfc0390f96ec9660f9790108b03feee44ad75b
MD5 hash:
6c56e40e1179bafa2fd9a6c248e107b8
SHA1 hash:
a22dafdf72c4ecb601aae3f26d6932366e4ba690
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Other
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