floxif | 2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708c

General

Target

2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708cN.exe
Size

1.5MB
MD5

2a6cfe1853efa90dee3238c7917b98f0
SHA1

92278e910047a967f52ce89c0d58bff05b2f08cc
SHA256

2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708c
SHA512

7f974c36464c03bb988437176e67d701f9392acfab6bb5394fa55a51917f604c366293e523663ea34f0a011f272017146483cd0d51feb1fb41477840b984851d
SSDEEP

24576:UH3q6coO6Wf6VoGvwRdQeQAwhcJaLpL2Q7tkrEH7M:S66cCchGvwzQeQAweJaNCQ7tg

Score

10^/10

floxif backdoor discovery persistence spyware stealer 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/0x0012000000015ccc-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x0012000000015ccc-1.dat	acprotect

Executes dropped EXE 1 IoCs

pid	Process
2660	msn.exe

Loads dropped DLL 4 IoCs

pid	Process
2512	2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708cN.exe
2512	2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708cN.exe
2512	2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708cN.exe
2660	msn.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\apo5 = "C:\\Program Files (x86)\\win\\msn.exe"	2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708cN.exe

Enumerates connected drives 3 TTPs 24 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\y:	msn.exe
File opened (read-only)	\??\g:	msn.exe
File opened (read-only)	\??\h:	msn.exe
File opened (read-only)	\??\q:	msn.exe
File opened (read-only)	\??\w:	msn.exe
File opened (read-only)	\??\r:	msn.exe
File opened (read-only)	\??\x:	msn.exe
File opened (read-only)	\??\e:	2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708cN.exe
File opened (read-only)	\??\b:	msn.exe
File opened (read-only)	\??\k:	msn.exe
File opened (read-only)	\??\o:	msn.exe
File opened (read-only)	\??\p:	msn.exe
File opened (read-only)	\??\s:	msn.exe
File opened (read-only)	\??\t:	msn.exe
File opened (read-only)	\??\v:	msn.exe
File opened (read-only)	\??\i:	msn.exe
File opened (read-only)	\??\l:	msn.exe
File opened (read-only)	\??\m:	msn.exe
File opened (read-only)	\??\n:	msn.exe
File opened (read-only)	\??\z:	msn.exe
File opened (read-only)	\??\e:	msn.exe
File opened (read-only)	\??\a:	msn.exe
File opened (read-only)	\??\j:	msn.exe
File opened (read-only)	\??\u:	msn.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0012000000015ccc-1.dat	upx
behavioral1/memory/2512-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2512-13-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2660-33-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2512-27-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2660-35-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2660-43-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2660-47-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2660-53-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2660-57-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2660-59-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 6 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708cN.exe
File created	\??\c:\program files\common files\system\symsrv.dll.000	2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708cN.exe
File opened for modification	C:\Program Files (x86)\win	2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708cN.exe
File created	C:\Program Files (x86)\win\msn.exe	2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708cN.exe
File opened for modification	C:\Program Files (x86)\win\msn.exe	2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708cN.exe
File created	\??\c:\program files\common files\system\symsrv.dll.000	msn.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	msn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708cN.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Internet Explorer\IntelliForms\Storage2	msn.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2512	2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708cN.exe
2660	msn.exe
2660	msn.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2512	2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708cN.exe
Token: SeDebugPrivilege	2660	msn.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2512 wrote to memory of 2660	2512	2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708cN.exe	32
PID 2512 wrote to memory of 2660	2512	2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708cN.exe	32
PID 2512 wrote to memory of 2660	2512	2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708cN.exe	32
PID 2512 wrote to memory of 2660	2512	2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708cN.exe	32

C:\Users\Admin\AppData\Local\Temp\2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708cN.exe
"C:\Users\Admin\AppData\Local\Temp\2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708cN.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Program Files (x86)\win\msn.exe
  "C:\Program Files (x86)\win\msn.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Enumerates connected drives
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files (x86)\win\msn.exe

Filesize
1.5MB

MD5
2a6cfe1853efa90dee3238c7917b98f0

SHA1
92278e910047a967f52ce89c0d58bff05b2f08cc

SHA256
2d449064a514289eea91bb5948256a3f1460994bba71c03ddc6c25f60d65708c

SHA512
7f974c36464c03bb988437176e67d701f9392acfab6bb5394fa55a51917f604c366293e523663ea34f0a011f272017146483cd0d51feb1fb41477840b984851d

Download Submit
\??\c:\program files\common files\system\symsrv.dll.000

Filesize
175B

MD5
1130c911bf5db4b8f7cf9b6f4b457623

SHA1
48e734c4bc1a8b5399bff4954e54b268bde9d54c

SHA256
eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1

SHA512
94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/2512-25-0x0000000000400000-0x00000000005BD000-memory.dmp

Filesize
1.7MB

Download
memory/2512-11-0x0000000000400000-0x00000000005BD000-memory.dmp

Filesize
1.7MB

Download
memory/2512-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2512-13-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2512-3-0x0000000000400000-0x00000000005BD000-memory.dmp

Filesize
1.7MB

Download
memory/2512-27-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2660-32-0x0000000000400000-0x00000000005BD000-memory.dmp

Filesize
1.7MB

Download
memory/2660-33-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2660-36-0x0000000000400000-0x00000000005BD000-memory.dmp

Filesize
1.7MB

Download
memory/2660-39-0x0000000075130000-0x0000000075165000-memory.dmp

Filesize
212KB

Download
memory/2660-35-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2660-38-0x0000000075136000-0x0000000075137000-memory.dmp

Filesize
4KB

Download
memory/2660-41-0x0000000075130000-0x0000000075165000-memory.dmp

Filesize
212KB

Download
memory/2660-43-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2660-42-0x0000000000400000-0x00000000005BD000-memory.dmp

Filesize
1.7MB

Download
memory/2660-47-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2660-53-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2660-57-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2660-59-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads