purplefox | 47d178214e35dc1d7dca9886abd3fc3e715a934c5e8540e9f0879d5d1c8addee

Resubmissions

28-01-2022 12:16

220128-pfymdsccbk 10

19-01-2022 09:07

220119-k3bzpagfak 10

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-en-20211208
submitted
19-01-2022 09:07

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General

Target

f373ebb32b2a836b78f932fd436ec49a.exe
Size

492KB
MD5

f373ebb32b2a836b78f932fd436ec49a
SHA1

fdf344a3d5684433e689b61de782d5bd29f185b9
SHA256

47d178214e35dc1d7dca9886abd3fc3e715a934c5e8540e9f0879d5d1c8addee
SHA512

b5fadc8d050d2bae9b1f657f33d8b23d6ac0eb39fb962a64059fe5e39c73a85e5f998a53622e06811616c55d037b115a853794841a2f16354b65af3ca1ffdb48

Score

10^/10

purplefox sainbox loader dropper loader rootkit suricata trojan

Malware Config

Extracted

Family

purplefox

Botnet

Sainbox

193.218.38.93

Extracted

Family

purplefox

Signatures

Detect PurpleFox Dropper 6 IoCs

Detect PurpleFox Dropper.

dropper loader

resource	yara_rule
	purplefox_dropper
	purplefox_dropper
behavioral1/files/0x00050000000141fe-61.dat	purplefox_dropper
behavioral1/files/0x0005000000014280-66.dat	purplefox_dropper
behavioral1/memory/1908-67-0x0000000180000000-0x00000001808AB000-memory.dmp	purplefox_dropper
behavioral1/memory/1908-70-0x0000000001F30000-0x00000000027A5000-memory.dmp	purplefox_dropper

Detect PurpleFox Rootkit 6 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
	purplefox_rootkit
	purplefox_rootkit
behavioral1/files/0x00050000000141fe-61.dat	purplefox_rootkit
behavioral1/files/0x0005000000014280-66.dat	purplefox_rootkit
behavioral1/memory/1908-67-0x0000000180000000-0x00000001808AB000-memory.dmp	purplefox_rootkit
behavioral1/memory/1908-70-0x0000000001F30000-0x00000000027A5000-memory.dmp	purplefox_rootkit

PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan purplefox
suricata: ET MALWARE OneLouder EXE download possibly installing Zeus P2P
suricata: ET MALWARE OneLouder EXE download possibly installing Zeus P2P
suricata
suricata: ET MALWARE Probable OneLouder downloader (Zeus P2P) exe download
suricata: ET MALWARE Probable OneLouder downloader (Zeus P2P) exe download
suricata
suricata: ET MALWARE PurpleFox Backdoor/Rootkit Download Request M1
suricata: ET MALWARE PurpleFox Backdoor/Rootkit Download Request M1
suricata

Executes dropped EXE 4 IoCs

pid	Process
2020	7zz.exe
1908	ojbkcg.exe
2004	111.exe
1312	7z.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\startup\╧╘┐¿╟²╢».lnk	7z.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\startup\╧╘┐¿╟²╢».lnk	7z.exe

Loads dropped DLL 8 IoCs

pid	Process
1600	f373ebb32b2a836b78f932fd436ec49a.exe
1600	f373ebb32b2a836b78f932fd436ec49a.exe
1908	ojbkcg.exe
2004	111.exe
2004	111.exe
2004	111.exe
2004	111.exe
1312	7z.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1600	f373ebb32b2a836b78f932fd436ec49a.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeRestorePrivilege	1312	7z.exe
Token: 35	1312	7z.exe
Token: SeSecurityPrivilege	1312	7z.exe
Token: SeSecurityPrivilege	1312	7z.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2004	111.exe
2004	111.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 2020	1600	f373ebb32b2a836b78f932fd436ec49a.exe	29
PID 1600 wrote to memory of 2020	1600	f373ebb32b2a836b78f932fd436ec49a.exe	29
PID 1600 wrote to memory of 2020	1600	f373ebb32b2a836b78f932fd436ec49a.exe	29
PID 1600 wrote to memory of 2020	1600	f373ebb32b2a836b78f932fd436ec49a.exe	29
PID 1600 wrote to memory of 1908	1600	f373ebb32b2a836b78f932fd436ec49a.exe	33
PID 1600 wrote to memory of 1908	1600	f373ebb32b2a836b78f932fd436ec49a.exe	33
PID 1600 wrote to memory of 1908	1600	f373ebb32b2a836b78f932fd436ec49a.exe	33
PID 1600 wrote to memory of 1908	1600	f373ebb32b2a836b78f932fd436ec49a.exe	33
PID 2004 wrote to memory of 1312	2004	111.exe	36
PID 2004 wrote to memory of 1312	2004	111.exe	36
PID 2004 wrote to memory of 1312	2004	111.exe	36
PID 2004 wrote to memory of 1312	2004	111.exe	36

C:\Users\Admin\AppData\Local\Temp\f373ebb32b2a836b78f932fd436ec49a.exe
"C:\Users\Admin\AppData\Local\Temp\f373ebb32b2a836b78f932fd436ec49a.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1600
- C:\Users\Public\Videos\1642583231\7zz.exe
  "C:\Users\Public\Videos\1642583231\7zz.exe" X -ep2 C:\Users\Public\Videos\1642583231\1.rar C:\Users\Public\Videos\1642583231
  2⤵
  - Executes dropped EXE
  PID:2020
- C:\Users\Public\Videos\1642583231\ojbkcg.exe
  "C:\Users\Public\Videos\1642583231\ojbkcg.exe" -a
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1908

C:\Users\Public\Documents\auto\111.exe
"C:\Users\Public\Documents\auto\111.exe"
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2004
- C:\ProgramData\7z.exe
  "C:\ProgramData\7z.exe" x C:\ProgramData\bb.zip -oC:\Users\Admin\AppData\Roaming\Microsoft\Windows
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Loads dropped DLL
  - Suspicious use of AdjustPrivilegeToken
  PID:1312

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\222.lnk

Filesize
1KB

MD5
9ab5c0bbf40b2e1fc5f29a8e474dd215

SHA1
1d2716926c3c5086d7d10afdb5964b556e131993

SHA256
f169d795ec6f5f75547655c79d359aca5f12834f3d79662865e82af902168f29

SHA512
8a596e2aa516d3df834fa79803ace1cb8e2891f3e31876795fa40bda934ff6f97dc5023afcebf9f716c81cce498ce60bf6c1aec2ee079c13d9f534c1fa161f5b

Download Submit
C:\ProgramData\7z.dll

Filesize
1.1MB

MD5
6a9e619a0392bb5918306f7fbaa8c85b

SHA1
d18d392e078e703ef7d9ec2a4f2042d7fbbf3863

SHA256
3beecf3d764daaffc020ba89dd764b0215fbd360bfc115fbb3880ef0672b98e5

SHA512
565c8f27395c41d4778debd0dec63d6fafb703255093d6ad5aea5d8b26f768f8b7ff7b2fa37a710179d3c1c0c0f47075a471c73584eb8941ee38b9ea25dcf809

Download Submit
C:\ProgramData\7z.exe

Filesize
301KB

MD5
c808d5b1f96af6f1869d6b6cdbeffd20

SHA1
7818808f9f3f9719420d160f9c842a84eabdf73e

SHA256
921226944015f01f2780179690b7bfcee7b92ea452fe85cae9375e49d64ee0b4

SHA512
f89a936640d96e92a86fe0c84dbf3273343faf8850e691b750c916afcc4f0ac49ebe985f97279bd8033254c63eff4319721556d04491218448db992823aebe01

Download Submit
C:\ProgramData\7z.exe

Filesize
301KB

MD5
c808d5b1f96af6f1869d6b6cdbeffd20

SHA1
7818808f9f3f9719420d160f9c842a84eabdf73e

SHA256
921226944015f01f2780179690b7bfcee7b92ea452fe85cae9375e49d64ee0b4

SHA512
f89a936640d96e92a86fe0c84dbf3273343faf8850e691b750c916afcc4f0ac49ebe985f97279bd8033254c63eff4319721556d04491218448db992823aebe01

Download Submit
C:\ProgramData\bb.zip

Filesize
1KB

MD5
fd6745c7e6659a134b2388b81f743eb8

SHA1
175c4e2e49d86f4a84a5fb675a86460cbdd291c0

SHA256
793d02326504985024cd6afa21f0e1555855b59bc3a63442f0c51337ba74720a

SHA512
24611c0e585d330ff82561f3586aaa57b07c044dafd1d0513e2257ec53a4eb63a9989be2112e1c0ac5d20e62a2e3ebaa932bfa4c3e5c29d4c8aef68542c3e0f1

Download Submit
C:\ProgramData\svchost.txt

Filesize
8.5MB

MD5
5ecefaea48c5a8498b036acd8ce411a5

SHA1
501b3ed0fb6c33f6a122d603292d7fe04e8ce04f

SHA256
88dd42dedc77e8ad117cc54d7b37083bbacaa6ecb84553bda31905b0a29e0e4d

SHA512
e41a6bb1c734330dac37b9e7552053efdb46d15bf60601613baf8b5ab4be352c4d2f2d1c4e8bc4fe1616b98adfcf7b26336300b3bb724a9016e04d5820b2dd00

Download Submit
C:\Users\Public\Documents\auto\111.exe

Filesize
328KB

MD5
26d1f8cc33a7567463bfaebc2242833c

SHA1
1bd4fa5729c289a3ca1c4955f52464e4cc5ec4da

SHA256
cb201744a0f50e72ee4fda9298785fa16bfc4bf639a9474457e429278ff376bc

SHA512
01b3909272b3b25a9601cef11fd1122660a56b5220e8b3187c1b27135a23cc9aee9926761ce64ca9d8d872719da420131d83d4556c6255d20579be28d274b445

Download Submit
C:\Users\Public\Documents\auto\111.exe

Filesize
328KB

MD5
26d1f8cc33a7567463bfaebc2242833c

SHA1
1bd4fa5729c289a3ca1c4955f52464e4cc5ec4da

SHA256
cb201744a0f50e72ee4fda9298785fa16bfc4bf639a9474457e429278ff376bc

SHA512
01b3909272b3b25a9601cef11fd1122660a56b5220e8b3187c1b27135a23cc9aee9926761ce64ca9d8d872719da420131d83d4556c6255d20579be28d274b445

Download Submit
C:\Users\Public\Documents\auto\update.ini

Filesize
39B

MD5
ee5768d7d9e319e36f17476d12450785

SHA1
e08648361310618ea81b793411def40cef9e1745

SHA256
e21a77a762b943102a0bd1cd9909b4f2c310889b1e3144a1a1e39fc4f09667bf

SHA512
daff15ba6de59d2078dcaee5c381a71c2047bc18782a442c6c9ed83fcea3cb3f00f7a99ddf3092785fd7d7d8b70ee1009a717845074d354ebecac484442dae06

Download Submit
C:\Users\Public\Videos\1642583231\1.rar

Filesize
2.6MB

MD5
ba08eccd1f00c25dfd65f666896893b7

SHA1
e5ed83a57d12ba1e4df10483ce41f743807b2b22

SHA256
f5806b666f9b416c0f649a53748d79a4e392988c09410689e032eeff71973620

SHA512
0b295c2089b966f83cc2f51a599af692f74539f7a1e071113dfd13afd31f9bdd2bc8d2366cfc75c79cd90bc5067638ce48f8f1ff1e47eb6494c528bfef03ffb0

Download Submit
C:\Users\Public\Videos\1642583231\360.tct

Filesize
254KB

MD5
ccdffd31fa73286c21a7bef5fd899f15

SHA1
0a1df0830c295ae914fb2094f5eb9a5e8d6746cf

SHA256
d70c4f4812884762d0c17060985d38bc24b2a777b7f3148d1bbabdacf4cb4c58

SHA512
a865a1eab6b9a7ad8fd2860843536276548cdad3834918772ab5ea4b378ef7c5a8f680671031c9bb6449136da61e683c3f910a241402a4302628b47b91b3e348

Download Submit
C:\Users\Public\Videos\1642583231\7zz.exe

Filesize
572KB

MD5
f2ae502d448cfb81a5f40a9368d99b1a

SHA1
f849be86e9e7ced0acd51a68f92992b8090d08a5

SHA256
07ad4b984f288304003b080dd013784685181de4353a0b70a0247f96e535bd56

SHA512
9f3aea471684e22bf9fc045ca0e47a8429fa0b13c188f9c7a51937efa8afcec976761b0c4c95aed7735096fcc2278bbd86b0ab581261a6aff6c694d7bb65e9be

Download Submit
C:\Users\Public\Videos\1642583231\ojbkcg.exe

Filesize
329KB

MD5
979823a05959fb29275d8f2537886924

SHA1
36d58a7ca54ec317879cd2df0a1e6a640c987cc9

SHA256
bc7efcee6c968970fc88d1fecfd855c7a70f29144024004099111ed1de7c7282

SHA512
c2a54714d861283eda9693f8ca92f36cf6dd216168fdcf724771060337d807eff5383ac5f655ba65a03922ef929c6b0866a514e5228198e2fc5e7f47bac683b0

Download Submit
C:\Users\Public\Videos\1642583231\ojbkcg.exe

Filesize
329KB

MD5
979823a05959fb29275d8f2537886924

SHA1
36d58a7ca54ec317879cd2df0a1e6a640c987cc9

SHA256
bc7efcee6c968970fc88d1fecfd855c7a70f29144024004099111ed1de7c7282

SHA512
c2a54714d861283eda9693f8ca92f36cf6dd216168fdcf724771060337d807eff5383ac5f655ba65a03922ef929c6b0866a514e5228198e2fc5e7f47bac683b0

Download Submit
C:\Users\Public\Videos\1642583231\rundll3222.exe

Filesize
45KB

MD5
c36bb659f08f046b139c8d1b980bf1ac

SHA1
dd3247b225a8da3161f76055f31cbc5f64a66086

SHA256
405f03534be8b45185695f68deb47d4daf04dcd6df9d351ca6831d3721b1efc4

SHA512
3eeae6a3b424fa1709b4443f625ee99fa2d2861661214b868d36bf5a63c0aaac61ad3bdd9c4b18cb9d820ef89653787df812289d31d65415c4dd08fd45d0c73f

Download Submit
C:\Users\Public\Videos\1642583231\svchost.txt

Filesize
8.5MB

MD5
5ecefaea48c5a8498b036acd8ce411a5

SHA1
501b3ed0fb6c33f6a122d603292d7fe04e8ce04f

SHA256
88dd42dedc77e8ad117cc54d7b37083bbacaa6ecb84553bda31905b0a29e0e4d

SHA512
e41a6bb1c734330dac37b9e7552053efdb46d15bf60601613baf8b5ab4be352c4d2f2d1c4e8bc4fe1616b98adfcf7b26336300b3bb724a9016e04d5820b2dd00

Download Submit
\ProgramData\7z.dll

Filesize
1.1MB

MD5
6a9e619a0392bb5918306f7fbaa8c85b

SHA1
d18d392e078e703ef7d9ec2a4f2042d7fbbf3863

SHA256
3beecf3d764daaffc020ba89dd764b0215fbd360bfc115fbb3880ef0672b98e5

SHA512
565c8f27395c41d4778debd0dec63d6fafb703255093d6ad5aea5d8b26f768f8b7ff7b2fa37a710179d3c1c0c0f47075a471c73584eb8941ee38b9ea25dcf809

Download Submit
\ProgramData\7z.exe

Filesize
301KB

MD5
c808d5b1f96af6f1869d6b6cdbeffd20

SHA1
7818808f9f3f9719420d160f9c842a84eabdf73e

SHA256
921226944015f01f2780179690b7bfcee7b92ea452fe85cae9375e49d64ee0b4

SHA512
f89a936640d96e92a86fe0c84dbf3273343faf8850e691b750c916afcc4f0ac49ebe985f97279bd8033254c63eff4319721556d04491218448db992823aebe01

Download Submit
\ProgramData\7z.exe

Filesize
301KB

MD5
c808d5b1f96af6f1869d6b6cdbeffd20

SHA1
7818808f9f3f9719420d160f9c842a84eabdf73e

SHA256
921226944015f01f2780179690b7bfcee7b92ea452fe85cae9375e49d64ee0b4

SHA512
f89a936640d96e92a86fe0c84dbf3273343faf8850e691b750c916afcc4f0ac49ebe985f97279bd8033254c63eff4319721556d04491218448db992823aebe01

Download Submit
\ProgramData\7z.exe

Filesize
301KB

MD5
c808d5b1f96af6f1869d6b6cdbeffd20

SHA1
7818808f9f3f9719420d160f9c842a84eabdf73e

SHA256
921226944015f01f2780179690b7bfcee7b92ea452fe85cae9375e49d64ee0b4

SHA512
f89a936640d96e92a86fe0c84dbf3273343faf8850e691b750c916afcc4f0ac49ebe985f97279bd8033254c63eff4319721556d04491218448db992823aebe01

Download Submit
\ProgramData\7z.exe

Filesize
301KB

MD5
c808d5b1f96af6f1869d6b6cdbeffd20

SHA1
7818808f9f3f9719420d160f9c842a84eabdf73e

SHA256
921226944015f01f2780179690b7bfcee7b92ea452fe85cae9375e49d64ee0b4

SHA512
f89a936640d96e92a86fe0c84dbf3273343faf8850e691b750c916afcc4f0ac49ebe985f97279bd8033254c63eff4319721556d04491218448db992823aebe01

Download Submit
\Users\Public\Videos\1642583231\360.tct

Filesize
254KB

MD5
ccdffd31fa73286c21a7bef5fd899f15

SHA1
0a1df0830c295ae914fb2094f5eb9a5e8d6746cf

SHA256
d70c4f4812884762d0c17060985d38bc24b2a777b7f3148d1bbabdacf4cb4c58

SHA512
a865a1eab6b9a7ad8fd2860843536276548cdad3834918772ab5ea4b378ef7c5a8f680671031c9bb6449136da61e683c3f910a241402a4302628b47b91b3e348

Download Submit
\Users\Public\Videos\1642583231\7zz.exe

Filesize
572KB

MD5
f2ae502d448cfb81a5f40a9368d99b1a

SHA1
f849be86e9e7ced0acd51a68f92992b8090d08a5

SHA256
07ad4b984f288304003b080dd013784685181de4353a0b70a0247f96e535bd56

SHA512
9f3aea471684e22bf9fc045ca0e47a8429fa0b13c188f9c7a51937efa8afcec976761b0c4c95aed7735096fcc2278bbd86b0ab581261a6aff6c694d7bb65e9be

Download Submit
\Users\Public\Videos\1642583231\ojbkcg.exe

Filesize
329KB

MD5
979823a05959fb29275d8f2537886924

SHA1
36d58a7ca54ec317879cd2df0a1e6a640c987cc9

SHA256
bc7efcee6c968970fc88d1fecfd855c7a70f29144024004099111ed1de7c7282

SHA512
c2a54714d861283eda9693f8ca92f36cf6dd216168fdcf724771060337d807eff5383ac5f655ba65a03922ef929c6b0866a514e5228198e2fc5e7f47bac683b0

Download Submit
memory/1600-54-0x0000000075601000-0x0000000075603000-memory.dmp

Filesize
8KB

Download
memory/1908-73-0x000007FEFB771000-0x000007FEFB773000-memory.dmp

Filesize
8KB

Download
memory/1908-70-0x0000000001F30000-0x00000000027A5000-memory.dmp

Filesize
8.5MB

Download
memory/1908-67-0x0000000180000000-0x00000001808AB000-memory.dmp

Filesize
8.7MB

Download