nymaim | f62e231187f95a7f95ea964c2969395b044fecb62ae83f6dfddf260268dc29cd

General

Target

file.exe
Size

2.8MB
MD5

365cdb873373977e7ecb0f1cfe880a73
SHA1

fbae09f6773465d099776cc111ba76f2a7ec45be
SHA256

f62e231187f95a7f95ea964c2969395b044fecb62ae83f6dfddf260268dc29cd
SHA512

1b7eb9799d6840a214fe1a349f4f1b123a504ed556a1b08befc5b8e10034dbbdb76fc5972c79d063faa1ac7deaa1de0e80e93cecc04a5c87784dd4cd08509e88
SSDEEP

49152:Z2+J+qtK90Kw/ZJVNCEYtbE0EFvUSsDm3BhUJtDqIl2+T1ab2vOlfe+D5A5hq:M+xtKCKw/Z7NCEAREZ7im3UZ51aSmlKW

Score

10^/10

nymaim discovery trojan

Malware Config

Extracted

Family

nymaim

C2

45.139.105.171

85.31.46.167

Signatures

NyMaim
NyMaim is a malware with various capabilities written in C++ and first seen in 2013.
trojan nymaim

Executes dropped EXE 3 IoCs

pid	Process
2160	is-PI43J.tmp
1096	fpsearcher69.exe
4632	3heVBxbePV46i.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	fpsearcher69.exe

Loads dropped DLL 1 IoCs

pid	Process
2160	is-PI43J.tmp

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Program Files directory 12 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\fpSearcher\is-0TQGD.tmp	is-PI43J.tmp
File created	C:\Program Files (x86)\fpSearcher\is-J4Q5S.tmp	is-PI43J.tmp
File created	C:\Program Files (x86)\fpSearcher\is-BNI8S.tmp	is-PI43J.tmp
File opened for modification	C:\Program Files (x86)\fpSearcher\unins000.dat	is-PI43J.tmp
File opened for modification	C:\Program Files (x86)\fpSearcher\fpsearcher69.exe	is-PI43J.tmp
File created	C:\Program Files (x86)\fpSearcher\is-KPHN9.tmp	is-PI43J.tmp
File created	C:\Program Files (x86)\fpSearcher\is-KFJBV.tmp	is-PI43J.tmp
File created	C:\Program Files (x86)\fpSearcher\is-N748B.tmp	is-PI43J.tmp
File created	C:\Program Files (x86)\fpSearcher\is-TMQRU.tmp	is-PI43J.tmp
File created	C:\Program Files (x86)\fpSearcher\is-AESE1.tmp	is-PI43J.tmp
File created	C:\Program Files (x86)\fpSearcher\unins000.dat	is-PI43J.tmp
File created	C:\Program Files (x86)\fpSearcher\is-H947B.tmp	is-PI43J.tmp

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

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
3136	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1096	fpsearcher69.exe
1096	fpsearcher69.exe
1096	fpsearcher69.exe
1096	fpsearcher69.exe
1096	fpsearcher69.exe
1096	fpsearcher69.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3136	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4752 wrote to memory of 2160	4752	file.exe	83
PID 4752 wrote to memory of 2160	4752	file.exe	83
PID 4752 wrote to memory of 2160	4752	file.exe	83
PID 2160 wrote to memory of 1096	2160	is-PI43J.tmp	84
PID 2160 wrote to memory of 1096	2160	is-PI43J.tmp	84
PID 2160 wrote to memory of 1096	2160	is-PI43J.tmp	84
PID 1096 wrote to memory of 4632	1096	fpsearcher69.exe	89
PID 1096 wrote to memory of 4632	1096	fpsearcher69.exe	89
PID 1096 wrote to memory of 4632	1096	fpsearcher69.exe	89
PID 1096 wrote to memory of 5044	1096	fpsearcher69.exe	93
PID 1096 wrote to memory of 5044	1096	fpsearcher69.exe	93
PID 1096 wrote to memory of 5044	1096	fpsearcher69.exe	93
PID 5044 wrote to memory of 3136	5044	cmd.exe	95
PID 5044 wrote to memory of 3136	5044	cmd.exe	95
PID 5044 wrote to memory of 3136	5044	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4752
- C:\Users\Admin\AppData\Local\Temp\is-MGKJB.tmp\is-PI43J.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-MGKJB.tmp\is-PI43J.tmp" /SL4 $1D01DC "C:\Users\Admin\AppData\Local\Temp\file.exe" 2723864 52736
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2160
- - C:\Program Files (x86)\fpSearcher\fpsearcher69.exe
    "C:\Program Files (x86)\fpSearcher\fpsearcher69.exe"
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1096
  - - C:\Users\Admin\AppData\Roaming\{d6dc608d-2a27-11ed-a0e3-806e6f6e6963}\3heVBxbePV46i.exe
      4⤵
      Executes dropped EXE
      PID:4632
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "fpsearcher69.exe" /f & erase "C:\Program Files (x86)\fpSearcher\fpsearcher69.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:5044
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "fpsearcher69.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:3136

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files (x86)\fpSearcher\fpsearcher69.exe

Filesize
4.3MB

MD5
8802d31bbb180244abacc15f38348823

SHA1
5b4b70a4c71a024359299a4240e1c1923fd0690c

SHA256
a9a59d70e198f3609d654c7e651d12526517cb25dd81fea51e2a044099834ff1

SHA512
a13318fe4ce3fbb797d28a3c502ae446d7f6b5c78f64df378987697a53b332a51d40e1b689702d0b17bdcfb953416303edbc800bd6aecf03f2ba1555a41a62a0

Download Submit
C:\Program Files (x86)\fpSearcher\fpsearcher69.exe

Filesize
4.3MB

MD5
8802d31bbb180244abacc15f38348823

SHA1
5b4b70a4c71a024359299a4240e1c1923fd0690c

SHA256
a9a59d70e198f3609d654c7e651d12526517cb25dd81fea51e2a044099834ff1

SHA512
a13318fe4ce3fbb797d28a3c502ae446d7f6b5c78f64df378987697a53b332a51d40e1b689702d0b17bdcfb953416303edbc800bd6aecf03f2ba1555a41a62a0

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-MGKJB.tmp\is-PI43J.tmp

Filesize
657KB

MD5
7cd12c54a9751ca6eee6ab0c85fb68f5

SHA1
76562e9b7888b6d20d67addb5a90b68b54a51987

SHA256
e82cabb027db8846c3430be760f137afa164c36f9e1b93a6e34c96de0b2c5a5f

SHA512
27ba5d2f719aaac2ead6fb42f23af3aa866f75026be897cd2f561f3e383904e89e6043bd22b4ae24f69787bd258a68ff696c09c03d656cbf7c79c2a52d8d82cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-MGKJB.tmp\is-PI43J.tmp

Filesize
657KB

MD5
7cd12c54a9751ca6eee6ab0c85fb68f5

SHA1
76562e9b7888b6d20d67addb5a90b68b54a51987

SHA256
e82cabb027db8846c3430be760f137afa164c36f9e1b93a6e34c96de0b2c5a5f

SHA512
27ba5d2f719aaac2ead6fb42f23af3aa866f75026be897cd2f561f3e383904e89e6043bd22b4ae24f69787bd258a68ff696c09c03d656cbf7c79c2a52d8d82cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-V0D5H.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Roaming\{d6dc608d-2a27-11ed-a0e3-806e6f6e6963}\3heVBxbePV46i.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{d6dc608d-2a27-11ed-a0e3-806e6f6e6963}\3heVBxbePV46i.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/1096-142-0x0000000000400000-0x0000000001656000-memory.dmp

Filesize
18.3MB

Download
memory/1096-143-0x0000000000400000-0x0000000001656000-memory.dmp

Filesize
18.3MB

Download
memory/1096-155-0x0000000000400000-0x0000000001656000-memory.dmp

Filesize
18.3MB

Download
memory/1096-144-0x0000000000400000-0x0000000001656000-memory.dmp

Filesize
18.3MB

Download
memory/1096-152-0x0000000000400000-0x0000000001656000-memory.dmp

Filesize
18.3MB

Download
memory/1096-148-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/4752-137-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4752-132-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4752-156-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing