floxif | 7dce76ad3ea326d7317bb2a41ae5330371774f2590d98b5e9654306dfd5077ac

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-02-2025 08:59

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General

Target

JaffaCakes118_b545c4958d3925121ed882fd142b4fc0.dll
Size

140KB
MD5

b545c4958d3925121ed882fd142b4fc0
SHA1

c3a4b8a8aab18d2ed16eb803d51fb1f863b07e86
SHA256

7dce76ad3ea326d7317bb2a41ae5330371774f2590d98b5e9654306dfd5077ac
SHA512

db074a5e4a029daa7a427720e58d4edca20e7f798fdd1c7110c4f421f67aa55a527afa9867ee10c7a4da8c267d76694782706f7b2db66e5b5e3c4e9847f85853
SSDEEP

3072:HGxATR37mcP95Y4hZwIjPhdFJIj4TI5FCGUjY0A3GM1:Hj37ZY4ldFQ5F000A3P1

Score

10^/10

floxif backdoor discovery trojan upx

Malware Config

Signatures

Floxif family
floxif
Floxif, Floodfix
Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.
backdoor trojan floxif

Detects Floxif payload 1 IoCs

backdoor

resource	yara_rule
behavioral1/files/0x000d0000000122e4-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000d0000000122e4-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
3068	rundll32.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x000d0000000122e4-1.dat	upx
behavioral1/memory/3068-3-0x0000000000170000-0x000000000019E000-memory.dmp	upx
behavioral1/memory/3068-5-0x0000000000170000-0x000000000019E000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 3068	3016	rundll32.exe	30
PID 3016 wrote to memory of 3068	3016	rundll32.exe	30
PID 3016 wrote to memory of 3068	3016	rundll32.exe	30
PID 3016 wrote to memory of 3068	3016	rundll32.exe	30
PID 3016 wrote to memory of 3068	3016	rundll32.exe	30
PID 3016 wrote to memory of 3068	3016	rundll32.exe	30
PID 3016 wrote to memory of 3068	3016	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b545c4958d3925121ed882fd142b4fc0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b545c4958d3925121ed882fd142b4fc0.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  PID:3068

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Program Files\Common Files\System\symsrv.dll

Filesize
65KB

MD5
80db2a010f1ba6a8dc1b661366ad8b45

SHA1
9bdb5f4c13477c204b8e33b24c86e6ad04e970a2

SHA256
6a19b9c58cdab7ffb01bf5db948ae31ec69367fe24c65c845028a20b5b9be7d8

SHA512
dc2a7c77285b7952714250fd5ec84120ef81bf5978800b8c692ca58a1d3761079ea08152882b3d06c1396c4394e2cf9e7f1b314c3cb13e2733b48ad3029ba7e1

Download Submit
memory/3068-3-0x0000000000170000-0x000000000019E000-memory.dmp

Filesize
184KB

Download
memory/3068-5-0x0000000000170000-0x000000000019E000-memory.dmp

Filesize
184KB

Download