gozi_ifsb | 3a252ac37d78baad0a81242c0cb2bd68208c12267aa87d3cd3c5d594f1de27a5

Analysis

max time kernel
556s
max time network
542s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
27-10-2022 00:07

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General

Target

3a252ac37d78baad0a81242c0cb2bd68208c12267aa87d3cd3c5d594f1de27a5.exe
Size

418KB
MD5

b8ea5cdd085bea860fb94bef2fecb6d9
SHA1

3788cec204c0f2f6fe674fba85895f99f48a1f23
SHA256

3a252ac37d78baad0a81242c0cb2bd68208c12267aa87d3cd3c5d594f1de27a5
SHA512

45dabd78a10f66209abef6446b96f4782ff7b6a20380282a5be6380f3d7e50020d171478226752659f0808f5d1ce870f617add30d132f981bbcb26347ff6a632
SSDEEP

12288:4r7ox3gdRAAzI+L7sCcDIg54qlcepleY:43ox3ghzHsIg2yvU

Score

10^/10

gozi_ifsb 1100 banker persistence trojan

Malware Config

Extracted

Family

gozi_ifsb

Botnet

1100

cyajon.at/krp3cmg

hipohook.cn/krp3cmg

rokolero.at/krp3cmg

arexan.at/krp3cmg

voligon.cn/krp3cmg

qwevigoc.at/krp3cmg

comerail.su/krp3cmg

boombom.at/krp3cmg

xiloker.cn/krp3cmg

xorewopa.at/krp3cmg

goinumder.su/krp3cmg

ribomoon.cn/krp3cmg

ambikooly.at/krp3cmg

therepalon.su/krp3cmg

chikoole.cn/krp3cmg

Attributes

build
214837
exe_type
worker
server_id
110

rsa_pubkey.plain

serpent.plain

Signatures

Gozi, Gozi IFSB
Gozi ISFB is a well-known and widely distributed banking trojan.
banker trojan gozi_ifsb

Executes dropped EXE 1 IoCs

pid	Process
1636	drprssec.exe

Deletes itself 1 IoCs

pid	Process
1636	drprssec.exe

Loads dropped DLL 1 IoCs

pid	Process
904	cmd.exe

Unexpected DNS network traffic destination 3 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	208.67.222.222
Destination IP	208.67.222.222
Destination IP	208.67.222.222

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\chtbider = "C:\\Users\\Admin\\AppData\\Roaming\\cngpput8\\drprssec.exe"	3a252ac37d78baad0a81242c0cb2bd68208c12267aa87d3cd3c5d594f1de27a5.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1636 set thread context of 1500	1636	drprssec.exe	31
PID 1500 set thread context of 1220	1500	svchost.exe	17

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 2 IoCs

pid	Process
1636	drprssec.exe
1220	Explorer.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1220	Explorer.EXE

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1636	drprssec.exe
1500	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1220	Explorer.EXE
Token: SeShutdownPrivilege	1220	Explorer.EXE

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
1720	3a252ac37d78baad0a81242c0cb2bd68208c12267aa87d3cd3c5d594f1de27a5.exe
1636	drprssec.exe
1220	Explorer.EXE
1220	Explorer.EXE
1220	Explorer.EXE
1220	Explorer.EXE

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1720	3a252ac37d78baad0a81242c0cb2bd68208c12267aa87d3cd3c5d594f1de27a5.exe
1636	drprssec.exe
1220	Explorer.EXE
1220	Explorer.EXE

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 556	1720	3a252ac37d78baad0a81242c0cb2bd68208c12267aa87d3cd3c5d594f1de27a5.exe	27
PID 1720 wrote to memory of 556	1720	3a252ac37d78baad0a81242c0cb2bd68208c12267aa87d3cd3c5d594f1de27a5.exe	27
PID 1720 wrote to memory of 556	1720	3a252ac37d78baad0a81242c0cb2bd68208c12267aa87d3cd3c5d594f1de27a5.exe	27
PID 1720 wrote to memory of 556	1720	3a252ac37d78baad0a81242c0cb2bd68208c12267aa87d3cd3c5d594f1de27a5.exe	27
PID 556 wrote to memory of 904	556	cmd.exe	29
PID 556 wrote to memory of 904	556	cmd.exe	29
PID 556 wrote to memory of 904	556	cmd.exe	29
PID 556 wrote to memory of 904	556	cmd.exe	29
PID 904 wrote to memory of 1636	904	cmd.exe	30
PID 904 wrote to memory of 1636	904	cmd.exe	30
PID 904 wrote to memory of 1636	904	cmd.exe	30
PID 904 wrote to memory of 1636	904	cmd.exe	30
PID 1636 wrote to memory of 1500	1636	drprssec.exe	31
PID 1636 wrote to memory of 1500	1636	drprssec.exe	31
PID 1636 wrote to memory of 1500	1636	drprssec.exe	31
PID 1636 wrote to memory of 1500	1636	drprssec.exe	31
PID 1636 wrote to memory of 1500	1636	drprssec.exe	31
PID 1636 wrote to memory of 1500	1636	drprssec.exe	31
PID 1636 wrote to memory of 1500	1636	drprssec.exe	31
PID 1500 wrote to memory of 1220	1500	svchost.exe	17
PID 1500 wrote to memory of 1220	1500	svchost.exe	17
PID 1500 wrote to memory of 1220	1500	svchost.exe	17
PID 1220 wrote to memory of 1812	1220	Explorer.EXE	34
PID 1220 wrote to memory of 1812	1220	Explorer.EXE	34
PID 1220 wrote to memory of 1812	1220	Explorer.EXE	34
PID 1812 wrote to memory of 1468	1812	cmd.exe	36
PID 1812 wrote to memory of 1468	1812	cmd.exe	36
PID 1812 wrote to memory of 1468	1812	cmd.exe	36
PID 1220 wrote to memory of 932	1220	Explorer.EXE	37
PID 1220 wrote to memory of 932	1220	Explorer.EXE	37
PID 1220 wrote to memory of 932	1220	Explorer.EXE	37

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1220
- C:\Users\Admin\AppData\Local\Temp\3a252ac37d78baad0a81242c0cb2bd68208c12267aa87d3cd3c5d594f1de27a5.exe
  "C:\Users\Admin\AppData\Local\Temp\3a252ac37d78baad0a81242c0cb2bd68208c12267aa87d3cd3c5d594f1de27a5.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:1720
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\FF86\FFC3.bat" "C:\Users\Admin\AppData\Roaming\cngpput8\drprssec.exe" "C:\Users\Admin\AppData\Local\Temp\3A252A~1.EXE""
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:556
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /C ""C:\Users\Admin\AppData\Roaming\cngpput8\drprssec.exe" "C:\Users\Admin\AppData\Local\Temp\3A252A~1.EXE""
      4⤵
      Loads dropped DLL
      Suspicious use of WriteProcessMemory
      PID:904
    - - C:\Users\Admin\AppData\Roaming\cngpput8\drprssec.exe
        
        "C:\Users\Admin\AppData\Roaming\cngpput8\drprssec.exe" "C:\Users\Admin\AppData\Local\Temp\3A252A~1.EXE"
        5⤵
        Executes dropped EXE
        Deletes itself
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of FindShellTrayWindow
        Suspicious use of SendNotifyMessage
        Suspicious use of WriteProcessMemory
        
        PID:1636
      - C:\Windows\system32\svchost.exe
        
        C:\Windows\system32\svchost.exe
        6⤵
        Suspicious use of SetThreadContext
        Suspicious behavior: MapViewOfSection
        Suspicious use of WriteProcessMemory
        
        PID:1500
- C:\Windows\system32\cmd.exe
  cmd /C "nslookup myip.opendns.com resolver1.opendns.com > C:\Users\Admin\AppData\Local\Temp\C2A7.bi1"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1812
- - C:\Windows\system32\nslookup.exe
    nslookup myip.opendns.com resolver1.opendns.com
    3⤵
    PID:1468
- C:\Windows\system32\cmd.exe
  cmd /C "echo -------- >> C:\Users\Admin\AppData\Local\Temp\C2A7.bi1"
  2⤵
  PID:932

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\C2A7.bi1

Filesize
118B

MD5
4f6429322fdfd711b81d8824b25fcd9c

SHA1
f7f917b64dd43b620bacd21f134d430d3c406aec

SHA256
d22c844d015c874bbdbeb12b73ef54585cbd435c28f50d536fb4ace26d859ed8

SHA512
e661f8d79b031a4a043a388ec17d82b5092859ac1d0ce6668a082feecf1da5665837ad1ef984751c7be174bbb6c1012f45d9f550d5cf65dc8b0e6cddcbdb0816

Download Submit
C:\Users\Admin\AppData\Local\Temp\C2A7.bi1

Filesize
118B

MD5
4f6429322fdfd711b81d8824b25fcd9c

SHA1
f7f917b64dd43b620bacd21f134d430d3c406aec

SHA256
d22c844d015c874bbdbeb12b73ef54585cbd435c28f50d536fb4ace26d859ed8

SHA512
e661f8d79b031a4a043a388ec17d82b5092859ac1d0ce6668a082feecf1da5665837ad1ef984751c7be174bbb6c1012f45d9f550d5cf65dc8b0e6cddcbdb0816

Download Submit
C:\Users\Admin\AppData\Local\Temp\FF86\FFC3.bat

Filesize
108B

MD5
de0bb5b277a11c73e96ac12e9385e92d

SHA1
6709de05f3462aff9f9df00fbd08a186c5dff980

SHA256
034770653998707ad9ef3f785facb3b7ca0dd2f6ecebb5f16d4b26b79ee09e26

SHA512
568519fb3da910a9ab4cd8fabc552888bfa7d1d41670ef09b5235e246b51c75d56d743de18d0f6d860bed80b6be2787be08687744505c2dcd7b076719fadfe43

Download Submit
C:\Users\Admin\AppData\Roaming\cngpput8\drprssec.exe

Filesize
418KB

MD5
b8ea5cdd085bea860fb94bef2fecb6d9

SHA1
3788cec204c0f2f6fe674fba85895f99f48a1f23

SHA256
3a252ac37d78baad0a81242c0cb2bd68208c12267aa87d3cd3c5d594f1de27a5

SHA512
45dabd78a10f66209abef6446b96f4782ff7b6a20380282a5be6380f3d7e50020d171478226752659f0808f5d1ce870f617add30d132f981bbcb26347ff6a632

Download Submit
C:\Users\Admin\AppData\Roaming\cngpput8\drprssec.exe

Filesize
418KB

MD5
b8ea5cdd085bea860fb94bef2fecb6d9

SHA1
3788cec204c0f2f6fe674fba85895f99f48a1f23

SHA256
3a252ac37d78baad0a81242c0cb2bd68208c12267aa87d3cd3c5d594f1de27a5

SHA512
45dabd78a10f66209abef6446b96f4782ff7b6a20380282a5be6380f3d7e50020d171478226752659f0808f5d1ce870f617add30d132f981bbcb26347ff6a632

Download Submit
\Users\Admin\AppData\Roaming\cngpput8\drprssec.exe

Filesize
418KB

MD5
b8ea5cdd085bea860fb94bef2fecb6d9

SHA1
3788cec204c0f2f6fe674fba85895f99f48a1f23

SHA256
3a252ac37d78baad0a81242c0cb2bd68208c12267aa87d3cd3c5d594f1de27a5

SHA512
45dabd78a10f66209abef6446b96f4782ff7b6a20380282a5be6380f3d7e50020d171478226752659f0808f5d1ce870f617add30d132f981bbcb26347ff6a632

Download Submit
memory/1220-75-0x000007FE80CA0000-0x000007FE80CAA000-memory.dmp

Filesize
40KB

Download
memory/1220-72-0x0000000003A60000-0x0000000003AEE000-memory.dmp

Filesize
568KB

Download
memory/1220-74-0x000007FEFB220000-0x000007FEFB363000-memory.dmp

Filesize
1.3MB

Download
memory/1220-73-0x0000000003A60000-0x0000000003AEE000-memory.dmp

Filesize
568KB

Download
memory/1500-70-0x0000000000290000-0x000000000031E000-memory.dmp

Filesize
568KB

Download
memory/1500-71-0x0000000000290000-0x000000000031E000-memory.dmp

Filesize
568KB

Download
memory/1636-66-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/1636-68-0x00000000020F0000-0x0000000002112000-memory.dmp

Filesize
136KB

Download
memory/1720-54-0x00000000757A1000-0x00000000757A3000-memory.dmp

Filesize
8KB

Download
memory/1720-57-0x0000000001F50000-0x0000000001F72000-memory.dmp

Filesize
136KB

Download
memory/1720-55-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download