floxif | 03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982b

Analysis

max time kernel
144s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-09-2024 06:09

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General

Target

03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982bN.exe
Size

4.4MB
MD5

29c862de4bdb1a8ad1827eb0f298d7e0
SHA1

3bacf4f761a65c1da9391b715b3b2ff367e5dded
SHA256

03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982b
SHA512

65676c6f76d2e4574bf6b1073f3d0af8f52ea0f643ad4501f8afe14286eef57ddd7019546db9c842a8e4238e1bc6d7a6ef47fc13a02c444af1d8151fcc9cc877
SSDEEP

98304:Lq4tlQ0aeY51XNURYxaA6qjEb9tRuPmBmWBDLTMTtbslyzRt9cuISY6QZ:L1lhE9U6476itR+mLPw6lyZY6Q

Score

10^/10

floxif backdoor discovery trojan upx

Malware Config

Signatures

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/0x000c000000012281-2.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000c000000012281-2.dat	acprotect

Executes dropped EXE 1 IoCs

pid	Process
3000	install.exe

Loads dropped DLL 4 IoCs

pid	Process
2668	03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982bN.exe
2668	03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982bN.exe
3000	install.exe
2668	03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982bN.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2668-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x000c000000012281-2.dat	upx
behavioral1/memory/2668-6-0x0000000001000000-0x000000000101E000-memory.dmp	upx
behavioral1/memory/2668-58-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2668-60-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2668-67-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2668-72-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2668-76-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2668-80-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2668-84-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Enumerates connected drives 3 TTPs 1 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)	\??\e:	03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982bN.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982bN.exe
File created	\??\c:\program files\common files\system\symsrv.dll.000	03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982bN.exe

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	03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	install.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2668	03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982bN.exe
2668	03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982bN.exe
2668	03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982bN.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2668	03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982bN.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 3000	2668	03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982bN.exe	30
PID 2668 wrote to memory of 3000	2668	03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982bN.exe	30
PID 2668 wrote to memory of 3000	2668	03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982bN.exe	30
PID 2668 wrote to memory of 3000	2668	03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982bN.exe	30
PID 2668 wrote to memory of 3000	2668	03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982bN.exe	30
PID 2668 wrote to memory of 3000	2668	03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982bN.exe	30
PID 2668 wrote to memory of 3000	2668	03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982bN.exe	30

C:\Users\Admin\AppData\Local\Temp\03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982bN.exe
"C:\Users\Admin\AppData\Local\Temp\03ac6c6ca590475707bdd49e810c1a7daaf07c61d439ac5de1ceba788bae982bN.exe"
1⤵
- Loads dropped DLL
- 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:2668
- \??\c:\a259b325c4a0b7bfe7658f\install.exe
  c:\a259b325c4a0b7bfe7658f\.\install.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:3000

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files\Common Files\System\symsrv.dll.000

Filesize
175B

MD5
1130c911bf5db4b8f7cf9b6f4b457623

SHA1
48e734c4bc1a8b5399bff4954e54b268bde9d54c

SHA256
eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1

SHA512
94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

Download Submit
\??\c:\a259b325c4a0b7bfe7658f\globdata.ini

Filesize
1KB

MD5
0a6b586fabd072bd7382b5e24194eac7

SHA1
60e3c7215c1a40fbfb3016d52c2de44592f8ca95

SHA256
7912e3fcf2698cf4f8625e563cd8215c6668739cae18bd6f27af2d25bec5c951

SHA512
b96b0448e9f0e94a7867b6bb103979e9ef2c0e074bcb85988d450d63de6edcf21dc83bb154aafb7de524af3c3734f0bb1ba649db0408612479322e1aa85be9f4

Download Submit
\??\c:\a259b325c4a0b7bfe7658f\install.ini

Filesize
841B

MD5
f8f6c0e030cb622f065fe47d61da91d7

SHA1
cf6fa99747de8f35c6aea52df234c9c57583baa3

SHA256
c16727881c47a40077dc5a1f1ea71cbb28e3f4e156c0ae7074c6d7f5ecece21d

SHA512
b70c6d67dac5e6a0dbd17e3bcf570a95914482abad20d0304c02da22231070b4bc887720dbae972bc5066457e1273b68fde0805f1c1791e9466a5ca343485cde

Download Submit
\??\c:\a259b325c4a0b7bfe7658f\install.res.1033.dll

Filesize
85KB

MD5
ff6003014eefc9c30abe20e3e1f5fbe8

SHA1
4a5bd05f94545f01efc10232385b8fecad300678

SHA256
a522c5ea3250cdd538a9ce7b4a06dfd5123e7eb05eef67509f2b975a8e1d3067

SHA512
3adc5c705bab7fa7b50517a5eb3301491f5150b56e1088ed436590458e963da204cd1875af75db89742403476a56a94c3f425c05327767bdb4bbee4859667ac2

Download Submit
\??\c:\a259b325c4a0b7bfe7658f\vc_red.msi

Filesize
222KB

MD5
7e641e6a0b456271745c20c3bb8a18f9

SHA1
ae6cedcb81dc443611a310140ae4671789dbbf3a

SHA256
34c5e7d7ea270ee67f92d34843d89603d6d3b6d9ef5247b43ae3c59c909d380d

SHA512
f67d6bf69d094edcc93541332f31b326131ff89672edb30fd349def6952ad8bfd07dc2f0ca5967b48a7589eee5b7a14b9a2c1ebe0cba4ae2324f7957090ea903

Download Submit
\??\c:\a259b325c4a0b7bfe7658f\vcredist.bmp

Filesize
5KB

MD5
06fba95313f26e300917c6cea4480890

SHA1
31beee44776f114078fc403e405eaa5936c4bc3b

SHA256
594884a8006e24ad5b1578cd7c75aca21171bb079ebdc4f6518905bcf2237ba1

SHA512
7dca0f1ab5d3fd1ac8755142a7ca4d085bb0c2f12a7272e56159dadfa22da79ec8261815be71b9f5e7c32f6e8121ecb2443060f7db76feaf01eb193200e67dfd

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
\a259b325c4a0b7bfe7658f\install.exe

Filesize
547KB

MD5
4138c31964fbcb3b7418e086933324c3

SHA1
97cc6f58fb064ab6c4a2f02fb665fef77d30532f

SHA256
b72056fc3df6f46069294c243fe5006879bf4a9d8eef388369a590ca41745f29

SHA512
40cf2f35c3a944fca93d58d66465f0308197f5485381ff07d3065e0f59e94fc3834313068e4e5e5da395413ff2d3d1c3ff6fa050f2256e118972bf21a5643557

Download Submit
\a259b325c4a0b7bfe7658f\install.res.1033.dll.tmp

Filesize
162KB

MD5
5219adb6e913d6d6be491d0d540fb77f

SHA1
5880adae57e4e2b9e57f22b2797b2085ac751844

SHA256
099fd5319f23fbaca4870e1ba0823731c7700f11ee9c8375a0f398c5f86d37a0

SHA512
4a2d1c0bd771fafef29439b23a7bca52724dcdb3fccc39fa5c06c4653718a7333405a3c1ff6027f32c16b6471de53b3fc3fe241b343be1d3dd72574f1cebb0bd

Download Submit
memory/2668-59-0x0000000001000000-0x000000000101E000-memory.dmp

Filesize
120KB

Download
memory/2668-63-0x0000000077496000-0x0000000077497000-memory.dmp

Filesize
4KB

Download
memory/2668-6-0x0000000001000000-0x000000000101E000-memory.dmp

Filesize
120KB

Download
memory/2668-57-0x0000000001005000-0x0000000001006000-memory.dmp

Filesize
4KB

Download
memory/2668-58-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2668-1-0x0000000001005000-0x0000000001006000-memory.dmp

Filesize
4KB

Download
memory/2668-60-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2668-84-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2668-80-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2668-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2668-66-0x0000000077490000-0x00000000774C5000-memory.dmp

Filesize
212KB

Download
memory/2668-67-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2668-69-0x0000000077490000-0x00000000774C5000-memory.dmp

Filesize
212KB

Download
memory/2668-72-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2668-76-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3000-73-0x00000000753A0000-0x00000000753B7000-memory.dmp

Filesize
92KB

Download
memory/3000-45-0x0000000000190000-0x0000000000191000-memory.dmp

Filesize
4KB

Download
memory/3000-62-0x0000000000190000-0x0000000000191000-memory.dmp

Filesize
4KB

Download
memory/3000-61-0x00000000753A0000-0x00000000753B7000-memory.dmp

Filesize
92KB

Download